Home / 39,034.92-53,868.22-21,130.08

Finding the Fourth Proportional to 39,034.92, 53,868.22 and 21,130.08

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Solution

The fourth proportional to 39,034.92, 53,868.22 and 21,130.08 is: 29,159.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,034.92 : 53,868.22 = 21,130.08 : x
  2. Step 2: Convert to fraction form
    39,034.92/53,868.22 = 21,130.08/x
  3. Step 3: Cross multiply
    39,034.92x = 53,868.22 × 21,130.08
  4. Step 4: Simplify right side
    39,034.92x = 1,138,239,543.23
  5. Step 5: Solve for x
    x = 1,138,239,543.23/39,034.92
  6. Step 6: Final answer
    x = 29,159.52

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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.