Home / 39,400.30-59,108.55-13,123.90

Finding the Fourth Proportional to 39,400.30, 59,108.55 and 13,123.90

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Solution

The fourth proportional to 39,400.30, 59,108.55 and 13,123.90 is: 19,688.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,400.30 : 59,108.55 = 13,123.90 : x
  2. Step 2: Convert to fraction form
    39,400.30/59,108.55 = 13,123.90/x
  3. Step 3: Cross multiply
    39,400.30x = 59,108.55 × 13,123.90
  4. Step 4: Simplify right side
    39,400.30x = 775,734,699.35
  5. Step 5: Solve for x
    x = 775,734,699.35/39,400.30
  6. Step 6: Final answer
    x = 19,688.55

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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.