Home / 39,900.18-59,859.58-13,605.14

Finding the Fourth Proportional to 39,900.18, 59,859.58 and 13,605.14

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Solution

The fourth proportional to 39,900.18, 59,859.58 and 13,605.14 is: 20,410.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,900.18 : 59,859.58 = 13,605.14 : x
  2. Step 2: Convert to fraction form
    39,900.18/59,859.58 = 13,605.14/x
  3. Step 3: Cross multiply
    39,900.18x = 59,859.58 × 13,605.14
  4. Step 4: Simplify right side
    39,900.18x = 814,397,966.24
  5. Step 5: Solve for x
    x = 814,397,966.24/39,900.18
  6. Step 6: Final answer
    x = 20,410.88

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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.