Home / 39,801.83-59,690.07-13,142.86

Finding the Fourth Proportional to 39,801.83, 59,690.07 and 13,142.86

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Solution

The fourth proportional to 39,801.83, 59,690.07 and 13,142.86 is: 19,710.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,801.83 : 59,690.07 = 13,142.86 : x
  2. Step 2: Convert to fraction form
    39,801.83/59,690.07 = 13,142.86/x
  3. Step 3: Cross multiply
    39,801.83x = 59,690.07 × 13,142.86
  4. Step 4: Simplify right side
    39,801.83x = 784,497,934.95
  5. Step 5: Solve for x
    x = 784,497,934.95/39,801.83
  6. Step 6: Final answer
    x = 19,710.10

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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.