Home / 22,520.70-31,068.63-13,562.91

Finding the Fourth Proportional to 22,520.70, 31,068.63 and 13,562.91

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Solution

The fourth proportional to 22,520.70, 31,068.63 and 13,562.91 is: 18,710.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,520.70 : 31,068.63 = 13,562.91 : x
  2. Step 2: Convert to fraction form
    22,520.70/31,068.63 = 13,562.91/x
  3. Step 3: Cross multiply
    22,520.70x = 31,068.63 × 13,562.91
  4. Step 4: Simplify right side
    22,520.70x = 421,381,032.51
  5. Step 5: Solve for x
    x = 421,381,032.51/22,520.70
  6. Step 6: Final answer
    x = 18,710.83

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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.