Home / 39,437.12-59,142.72-13,134.80

Finding the Fourth Proportional to 39,437.12, 59,142.72 and 13,134.80

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Solution

The fourth proportional to 39,437.12, 59,142.72 and 13,134.80 is: 19,697.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,437.12 : 59,142.72 = 13,134.80 : x
  2. Step 2: Convert to fraction form
    39,437.12/59,142.72 = 13,134.80/x
  3. Step 3: Cross multiply
    39,437.12x = 59,142.72 × 13,134.80
  4. Step 4: Simplify right side
    39,437.12x = 776,827,798.66
  5. Step 5: Solve for x
    x = 776,827,798.66/39,437.12
  6. Step 6: Final answer
    x = 19,697.88

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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.