Home / 39,785.84-59,666.54-13,126.90

Finding the Fourth Proportional to 39,785.84, 59,666.54 and 13,126.90

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Solution

The fourth proportional to 39,785.84, 59,666.54 and 13,126.90 is: 19,686.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,785.84 : 59,666.54 = 13,126.90 : x
  2. Step 2: Convert to fraction form
    39,785.84/59,666.54 = 13,126.90/x
  3. Step 3: Cross multiply
    39,785.84x = 59,666.54 × 13,126.90
  4. Step 4: Simplify right side
    39,785.84x = 783,236,703.93
  5. Step 5: Solve for x
    x = 783,236,703.93/39,785.84
  6. Step 6: Final answer
    x = 19,686.32

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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.