Home / 22,926.18-31,640.85-14,991.42

Finding the Fourth Proportional to 22,926.18, 31,640.85 and 14,991.42

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Solution

The fourth proportional to 22,926.18, 31,640.85 and 14,991.42 is: 20,689.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,926.18 : 31,640.85 = 14,991.42 : x
  2. Step 2: Convert to fraction form
    22,926.18/31,640.85 = 14,991.42/x
  3. Step 3: Cross multiply
    22,926.18x = 31,640.85 × 14,991.42
  4. Step 4: Simplify right side
    22,926.18x = 474,341,271.51
  5. Step 5: Solve for x
    x = 474,341,271.51/22,926.18
  6. Step 6: Final answer
    x = 20,689.94

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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.