Home / 28,654.32-42,925.56-18,763.61

Finding the Fourth Proportional to 28,654.32, 42,925.56 and 18,763.61

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Solution

The fourth proportional to 28,654.32, 42,925.56 and 18,763.61 is: 28,108.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,654.32 : 42,925.56 = 18,763.61 : x
  2. Step 2: Convert to fraction form
    28,654.32/42,925.56 = 18,763.61/x
  3. Step 3: Cross multiply
    28,654.32x = 42,925.56 × 18,763.61
  4. Step 4: Simplify right side
    28,654.32x = 805,438,628.83
  5. Step 5: Solve for x
    x = 805,438,628.83/28,654.32
  6. Step 6: Final answer
    x = 28,108.80

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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.