Home / 39,155.24-54,034.64-21,250.40

Finding the Fourth Proportional to 39,155.24, 54,034.64 and 21,250.40

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Solution

The fourth proportional to 39,155.24, 54,034.64 and 21,250.40 is: 29,325.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,155.24 : 54,034.64 = 21,250.40 : x
  2. Step 2: Convert to fraction form
    39,155.24/54,034.64 = 21,250.40/x
  3. Step 3: Cross multiply
    39,155.24x = 54,034.64 × 21,250.40
  4. Step 4: Simplify right side
    39,155.24x = 1,148,257,713.86
  5. Step 5: Solve for x
    x = 1,148,257,713.86/39,155.24
  6. Step 6: Final answer
    x = 29,325.77

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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.