Home / 22,700.85-31,328.19-18,917.69

Finding the Fourth Proportional to 22,700.85, 31,328.19 and 18,917.69

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Solution

The fourth proportional to 22,700.85, 31,328.19 and 18,917.69 is: 26,107.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,700.85 : 31,328.19 = 18,917.69 : x
  2. Step 2: Convert to fraction form
    22,700.85/31,328.19 = 18,917.69/x
  3. Step 3: Cross multiply
    22,700.85x = 31,328.19 × 18,917.69
  4. Step 4: Simplify right side
    22,700.85x = 592,656,830.04
  5. Step 5: Solve for x
    x = 592,656,830.04/22,700.85
  6. Step 6: Final answer
    x = 26,107.25

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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.