Home / 28,443.60-42,607.80-16,117.20

Finding the Fourth Proportional to 28,443.60, 42,607.80 and 16,117.20

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Solution

The fourth proportional to 28,443.60, 42,607.80 and 16,117.20 is: 24,143.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,443.60 : 42,607.80 = 16,117.20 : x
  2. Step 2: Convert to fraction form
    28,443.60/42,607.80 = 16,117.20/x
  3. Step 3: Cross multiply
    28,443.60x = 42,607.80 × 16,117.20
  4. Step 4: Simplify right side
    28,443.60x = 686,718,434.16
  5. Step 5: Solve for x
    x = 686,718,434.16/28,443.60
  6. Step 6: Final answer
    x = 24,143.16

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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.