Home / 28,436.86-42,641.25-8,710.66

Finding the Fourth Proportional to 28,436.86, 42,641.25 and 8,710.66

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Solution

The fourth proportional to 28,436.86, 42,641.25 and 8,710.66 is: 13,061.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,436.86 : 42,641.25 = 8,710.66 : x
  2. Step 2: Convert to fraction form
    28,436.86/42,641.25 = 8,710.66/x
  3. Step 3: Cross multiply
    28,436.86x = 42,641.25 × 8,710.66
  4. Step 4: Simplify right side
    28,436.86x = 371,433,430.73
  5. Step 5: Solve for x
    x = 371,433,430.73/28,436.86
  6. Step 6: Final answer
    x = 13,061.69

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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.