Home / 39,225.00-54,131.11-21,320.05

Finding the Fourth Proportional to 39,225.00, 54,131.11 and 21,320.05

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Solution

The fourth proportional to 39,225.00, 54,131.11 and 21,320.05 is: 29,422.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,225.00 : 54,131.11 = 21,320.05 : x
  2. Step 2: Convert to fraction form
    39,225.00/54,131.11 = 21,320.05/x
  3. Step 3: Cross multiply
    39,225.00x = 54,131.11 × 21,320.05
  4. Step 4: Simplify right side
    39,225.00x = 1,154,077,868.46
  5. Step 5: Solve for x
    x = 1,154,077,868.46/39,225.00
  6. Step 6: Final answer
    x = 29,422.00

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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.