Home / 18,712.60-27,931.89-16,498.32

Finding the Fourth Proportional to 18,712.60, 27,931.89 and 16,498.32

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Solution

The fourth proportional to 18,712.60, 27,931.89 and 16,498.32 is: 24,626.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,712.60 : 27,931.89 = 16,498.32 : x
  2. Step 2: Convert to fraction form
    18,712.60/27,931.89 = 16,498.32/x
  3. Step 3: Cross multiply
    18,712.60x = 27,931.89 × 16,498.32
  4. Step 4: Simplify right side
    18,712.60x = 460,829,259.42
  5. Step 5: Solve for x
    x = 460,829,259.42/18,712.60
  6. Step 6: Final answer
    x = 24,626.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.