Home / 28,264.43-39,002.96-15,688.19

Finding the Fourth Proportional to 28,264.43, 39,002.96 and 15,688.19

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Solution

The fourth proportional to 28,264.43, 39,002.96 and 15,688.19 is: 21,648.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,264.43 : 39,002.96 = 15,688.19 : x
  2. Step 2: Convert to fraction form
    28,264.43/39,002.96 = 15,688.19/x
  3. Step 3: Cross multiply
    28,264.43x = 39,002.96 × 15,688.19
  4. Step 4: Simplify right side
    28,264.43x = 611,885,847.04
  5. Step 5: Solve for x
    x = 611,885,847.04/28,264.43
  6. Step 6: Final answer
    x = 21,648.62

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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.