Home / 39,312.11-54,250.67-21,407.24

Finding the Fourth Proportional to 39,312.11, 54,250.67 and 21,407.24

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Solution

The fourth proportional to 39,312.11, 54,250.67 and 21,407.24 is: 29,541.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,312.11 : 54,250.67 = 21,407.24 : x
  2. Step 2: Convert to fraction form
    39,312.11/54,250.67 = 21,407.24/x
  3. Step 3: Cross multiply
    39,312.11x = 54,250.67 × 21,407.24
  4. Step 4: Simplify right side
    39,312.11x = 1,161,356,734.56
  5. Step 5: Solve for x
    x = 1,161,356,734.56/39,312.11
  6. Step 6: Final answer
    x = 29,541.96

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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.