Home / 39,312.17-54,250.11-21,406.85

Finding the Fourth Proportional to 39,312.17, 54,250.11 and 21,406.85

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Solution

The fourth proportional to 39,312.17, 54,250.11 and 21,406.85 is: 29,541.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,312.17 : 54,250.11 = 21,406.85 : x
  2. Step 2: Convert to fraction form
    39,312.17/54,250.11 = 21,406.85/x
  3. Step 3: Cross multiply
    39,312.17x = 54,250.11 × 21,406.85
  4. Step 4: Simplify right side
    39,312.17x = 1,161,323,967.25
  5. Step 5: Solve for x
    x = 1,161,323,967.25/39,312.17
  6. Step 6: Final answer
    x = 29,541.08

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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.