Home / 38,148.74-52,645.89-21,153.70

Finding the Fourth Proportional to 38,148.74, 52,645.89 and 21,153.70

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Solution

The fourth proportional to 38,148.74, 52,645.89 and 21,153.70 is: 29,192.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,148.74 : 52,645.89 = 21,153.70 : x
  2. Step 2: Convert to fraction form
    38,148.74/52,645.89 = 21,153.70/x
  3. Step 3: Cross multiply
    38,148.74x = 52,645.89 × 21,153.70
  4. Step 4: Simplify right side
    38,148.74x = 1,113,655,100.57
  5. Step 5: Solve for x
    x = 1,113,655,100.57/38,148.74
  6. Step 6: Final answer
    x = 29,192.45

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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.