Home / 21,987.64-32,988.75-14,621.10

Finding the Fourth Proportional to 21,987.64, 32,988.75 and 14,621.10

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Solution

The fourth proportional to 21,987.64, 32,988.75 and 14,621.10 is: 21,936.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,987.64 : 32,988.75 = 14,621.10 : x
  2. Step 2: Convert to fraction form
    21,987.64/32,988.75 = 14,621.10/x
  3. Step 3: Cross multiply
    21,987.64x = 32,988.75 × 14,621.10
  4. Step 4: Simplify right side
    21,987.64x = 482,331,812.63
  5. Step 5: Solve for x
    x = 482,331,812.63/21,987.64
  6. Step 6: Final answer
    x = 21,936.50

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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.