Home / 28,372.34-39,153.51-15,625.24

Finding the Fourth Proportional to 28,372.34, 39,153.51 and 15,625.24

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Solution

The fourth proportional to 28,372.34, 39,153.51 and 15,625.24 is: 21,562.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,372.34 : 39,153.51 = 15,625.24 : x
  2. Step 2: Convert to fraction form
    28,372.34/39,153.51 = 15,625.24/x
  3. Step 3: Cross multiply
    28,372.34x = 39,153.51 × 15,625.24
  4. Step 4: Simplify right side
    28,372.34x = 611,782,892.71
  5. Step 5: Solve for x
    x = 611,782,892.71/28,372.34
  6. Step 6: Final answer
    x = 21,562.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.