Home / 28,521.77-42,793.61-11,877.35

Finding the Fourth Proportional to 28,521.77, 42,793.61 and 11,877.35

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Solution

The fourth proportional to 28,521.77, 42,793.61 and 11,877.35 is: 17,820.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,521.77 : 42,793.61 = 11,877.35 : x
  2. Step 2: Convert to fraction form
    28,521.77/42,793.61 = 11,877.35/x
  3. Step 3: Cross multiply
    28,521.77x = 42,793.61 × 11,877.35
  4. Step 4: Simplify right side
    28,521.77x = 508,274,410.38
  5. Step 5: Solve for x
    x = 508,274,410.38/28,521.77
  6. Step 6: Final answer
    x = 17,820.58

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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.