Home / 39,156.24-54,036.02-21,251.40

Finding the Fourth Proportional to 39,156.24, 54,036.02 and 21,251.40

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Solution

The fourth proportional to 39,156.24, 54,036.02 and 21,251.40 is: 29,327.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,156.24 : 54,036.02 = 21,251.40 : x
  2. Step 2: Convert to fraction form
    39,156.24/54,036.02 = 21,251.40/x
  3. Step 3: Cross multiply
    39,156.24x = 54,036.02 × 21,251.40
  4. Step 4: Simplify right side
    39,156.24x = 1,148,341,075.43
  5. Step 5: Solve for x
    x = 1,148,341,075.43/39,156.24
  6. Step 6: Final answer
    x = 29,327.15

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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.