Home / 28,677.12-39,570.24-16,101.12

Finding the Fourth Proportional to 28,677.12, 39,570.24 and 16,101.12

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Solution

The fourth proportional to 28,677.12, 39,570.24 and 16,101.12 is: 22,217.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,677.12 : 39,570.24 = 16,101.12 : x
  2. Step 2: Convert to fraction form
    28,677.12/39,570.24 = 16,101.12/x
  3. Step 3: Cross multiply
    28,677.12x = 39,570.24 × 16,101.12
  4. Step 4: Simplify right side
    28,677.12x = 637,125,182.67
  5. Step 5: Solve for x
    x = 637,125,182.67/28,677.12
  6. Step 6: Final answer
    x = 22,217.20

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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.