Home / 39,422.80-59,143.65-13,127.77

Finding the Fourth Proportional to 39,422.80, 59,143.65 and 13,127.77

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Solution

The fourth proportional to 39,422.80, 59,143.65 and 13,127.77 is: 19,694.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,422.80 : 59,143.65 = 13,127.77 : x
  2. Step 2: Convert to fraction form
    39,422.80/59,143.65 = 13,127.77/x
  3. Step 3: Cross multiply
    39,422.80x = 59,143.65 × 13,127.77
  4. Step 4: Simplify right side
    39,422.80x = 776,424,234.16
  5. Step 5: Solve for x
    x = 776,424,234.16/39,422.80
  6. Step 6: Final answer
    x = 19,694.80

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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.