Home / 22,740.60-31,365.98-13,311.04

Finding the Fourth Proportional to 22,740.60, 31,365.98 and 13,311.04

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Solution

The fourth proportional to 22,740.60, 31,365.98 and 13,311.04 is: 18,359.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,740.60 : 31,365.98 = 13,311.04 : x
  2. Step 2: Convert to fraction form
    22,740.60/31,365.98 = 13,311.04/x
  3. Step 3: Cross multiply
    22,740.60x = 31,365.98 × 13,311.04
  4. Step 4: Simplify right side
    22,740.60x = 417,513,814.42
  5. Step 5: Solve for x
    x = 417,513,814.42/22,740.60
  6. Step 6: Final answer
    x = 18,359.84

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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.