Home / 28,335.28-39,102.66-15,762.46

Finding the Fourth Proportional to 28,335.28, 39,102.66 and 15,762.46

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Solution

The fourth proportional to 28,335.28, 39,102.66 and 15,762.46 is: 21,752.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,335.28 : 39,102.66 = 15,762.46 : x
  2. Step 2: Convert to fraction form
    28,335.28/39,102.66 = 15,762.46/x
  3. Step 3: Cross multiply
    28,335.28x = 39,102.66 × 15,762.46
  4. Step 4: Simplify right side
    28,335.28x = 616,354,114.14
  5. Step 5: Solve for x
    x = 616,354,114.14/28,335.28
  6. Step 6: Final answer
    x = 21,752.18

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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.