Home / 28,678.86-39,572.55-16,101.18

Finding the Fourth Proportional to 28,678.86, 39,572.55 and 16,101.18

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Solution

The fourth proportional to 28,678.86, 39,572.55 and 16,101.18 is: 22,217.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,678.86 : 39,572.55 = 16,101.18 : x
  2. Step 2: Convert to fraction form
    28,678.86/39,572.55 = 16,101.18/x
  3. Step 3: Cross multiply
    28,678.86x = 39,572.55 × 16,101.18
  4. Step 4: Simplify right side
    28,678.86x = 637,164,750.61
  5. Step 5: Solve for x
    x = 637,164,750.61/28,678.86
  6. Step 6: Final answer
    x = 22,217.23

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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.