Home / 21,780.24-32,643.68-15,506.25

Finding the Fourth Proportional to 21,780.24, 32,643.68 and 15,506.25

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Solution

The fourth proportional to 21,780.24, 32,643.68 and 15,506.25 is: 23,240.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,780.24 : 32,643.68 = 15,506.25 : x
  2. Step 2: Convert to fraction form
    21,780.24/32,643.68 = 15,506.25/x
  3. Step 3: Cross multiply
    21,780.24x = 32,643.68 × 15,506.25
  4. Step 4: Simplify right side
    21,780.24x = 506,180,985.47
  5. Step 5: Solve for x
    x = 506,180,985.47/21,780.24
  6. Step 6: Final answer
    x = 23,240.38

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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.