Home / 28,502.20-42,762.52-13,709.18

Finding the Fourth Proportional to 28,502.20, 42,762.52 and 13,709.18

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Solution

The fourth proportional to 28,502.20, 42,762.52 and 13,709.18 is: 20,568.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,502.20 : 42,762.52 = 13,709.18 : x
  2. Step 2: Convert to fraction form
    28,502.20/42,762.52 = 13,709.18/x
  3. Step 3: Cross multiply
    28,502.20x = 42,762.52 × 13,709.18
  4. Step 4: Simplify right side
    28,502.20x = 586,239,130.86
  5. Step 5: Solve for x
    x = 586,239,130.86/28,502.20
  6. Step 6: Final answer
    x = 20,568.21

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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.