Home / 38,123.89-52,605.98-21,127.31

Finding the Fourth Proportional to 38,123.89, 52,605.98 and 21,127.31

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Solution

The fourth proportional to 38,123.89, 52,605.98 and 21,127.31 is: 29,152.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,123.89 : 52,605.98 = 21,127.31 : x
  2. Step 2: Convert to fraction form
    38,123.89/52,605.98 = 21,127.31/x
  3. Step 3: Cross multiply
    38,123.89x = 52,605.98 × 21,127.31
  4. Step 4: Simplify right side
    38,123.89x = 1,111,422,741.68
  5. Step 5: Solve for x
    x = 1,111,422,741.68/38,123.89
  6. Step 6: Final answer
    x = 29,152.92

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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.