Home / 39,030.52-53,862.26-21,125.76

Finding the Fourth Proportional to 39,030.52, 53,862.26 and 21,125.76

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Solution

The fourth proportional to 39,030.52, 53,862.26 and 21,125.76 is: 29,153.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,030.52 : 53,862.26 = 21,125.76 : x
  2. Step 2: Convert to fraction form
    39,030.52/53,862.26 = 21,125.76/x
  3. Step 3: Cross multiply
    39,030.52x = 53,862.26 × 21,125.76
  4. Step 4: Simplify right side
    39,030.52x = 1,137,881,177.82
  5. Step 5: Solve for x
    x = 1,137,881,177.82/39,030.52
  6. Step 6: Final answer
    x = 29,153.63

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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.