Home / 39,605.52-54,655.74-21,700.56

Finding the Fourth Proportional to 39,605.52, 54,655.74 and 21,700.56

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Solution

The fourth proportional to 39,605.52, 54,655.74 and 21,700.56 is: 29,946.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,605.52 : 54,655.74 = 21,700.56 : x
  2. Step 2: Convert to fraction form
    39,605.52/54,655.74 = 21,700.56/x
  3. Step 3: Cross multiply
    39,605.52x = 54,655.74 × 21,700.56
  4. Step 4: Simplify right side
    39,605.52x = 1,186,060,165.21
  5. Step 5: Solve for x
    x = 1,186,060,165.21/39,605.52
  6. Step 6: Final answer
    x = 29,946.84

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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.