Home / 28,030.85-38,691.95-16,703.90

Finding the Fourth Proportional to 28,030.85, 38,691.95 and 16,703.90

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Solution

The fourth proportional to 28,030.85, 38,691.95 and 16,703.90 is: 23,056.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,030.85 : 38,691.95 = 16,703.90 : x
  2. Step 2: Convert to fraction form
    28,030.85/38,691.95 = 16,703.90/x
  3. Step 3: Cross multiply
    28,030.85x = 38,691.95 × 16,703.90
  4. Step 4: Simplify right side
    28,030.85x = 646,306,560.33
  5. Step 5: Solve for x
    x = 646,306,560.33/28,030.85
  6. Step 6: Final answer
    x = 23,056.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.