Home / 28,937.45-39,951.63-22,210.20

Finding the Fourth Proportional to 28,937.45, 39,951.63 and 22,210.20

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Solution

The fourth proportional to 28,937.45, 39,951.63 and 22,210.20 is: 30,663.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,937.45 : 39,951.63 = 22,210.20 : x
  2. Step 2: Convert to fraction form
    28,937.45/39,951.63 = 22,210.20/x
  3. Step 3: Cross multiply
    28,937.45x = 39,951.63 × 22,210.20
  4. Step 4: Simplify right side
    28,937.45x = 887,333,692.63
  5. Step 5: Solve for x
    x = 887,333,692.63/28,937.45
  6. Step 6: Final answer
    x = 30,663.85

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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.