Home / 21,983.95-32,983.59-15,985.63

Finding the Fourth Proportional to 21,983.95, 32,983.59 and 15,985.63

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Solution

The fourth proportional to 21,983.95, 32,983.59 and 15,985.63 is: 23,984.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,983.95 : 32,983.59 = 15,985.63 : x
  2. Step 2: Convert to fraction form
    21,983.95/32,983.59 = 15,985.63/x
  3. Step 3: Cross multiply
    21,983.95x = 32,983.59 × 15,985.63
  4. Step 4: Simplify right side
    21,983.95x = 527,263,465.81
  5. Step 5: Solve for x
    x = 527,263,465.81/21,983.95
  6. Step 6: Final answer
    x = 23,984.02

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.