Home / 39,343.64-54,291.98-21,437.78

Finding the Fourth Proportional to 39,343.64, 54,291.98 and 21,437.78

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Solution

The fourth proportional to 39,343.64, 54,291.98 and 21,437.78 is: 29,582.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,343.64 : 54,291.98 = 21,437.78 : x
  2. Step 2: Convert to fraction form
    39,343.64/54,291.98 = 21,437.78/x
  3. Step 3: Cross multiply
    39,343.64x = 54,291.98 × 21,437.78
  4. Step 4: Simplify right side
    39,343.64x = 1,163,899,523.00
  5. Step 5: Solve for x
    x = 1,163,899,523.00/39,343.64
  6. Step 6: Final answer
    x = 29,582.91

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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.