Home / 39,478.47-59,217.69-11,402.55

Finding the Fourth Proportional to 39,478.47, 59,217.69 and 11,402.55

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Solution

The fourth proportional to 39,478.47, 59,217.69 and 11,402.55 is: 17,103.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,478.47 : 59,217.69 = 11,402.55 : x
  2. Step 2: Convert to fraction form
    39,478.47/59,217.69 = 11,402.55/x
  3. Step 3: Cross multiply
    39,478.47x = 59,217.69 × 11,402.55
  4. Step 4: Simplify right side
    39,478.47x = 675,232,671.11
  5. Step 5: Solve for x
    x = 675,232,671.11/39,478.47
  6. Step 6: Final answer
    x = 17,103.82

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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.