Home / 28,265.46-42,385.88-14,216.72

Finding the Fourth Proportional to 28,265.46, 42,385.88 and 14,216.72

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Solution

The fourth proportional to 28,265.46, 42,385.88 and 14,216.72 is: 21,318.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,265.46 : 42,385.88 = 14,216.72 : x
  2. Step 2: Convert to fraction form
    28,265.46/42,385.88 = 14,216.72/x
  3. Step 3: Cross multiply
    28,265.46x = 42,385.88 × 14,216.72
  4. Step 4: Simplify right side
    28,265.46x = 602,588,011.53
  5. Step 5: Solve for x
    x = 602,588,011.53/28,265.46
  6. Step 6: Final answer
    x = 21,318.89

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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.