Home / 38,123.34-52,609.41-21,127.43

Finding the Fourth Proportional to 38,123.34, 52,609.41 and 21,127.43

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Solution

The fourth proportional to 38,123.34, 52,609.41 and 21,127.43 is: 29,155.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,123.34 : 52,609.41 = 21,127.43 : x
  2. Step 2: Convert to fraction form
    38,123.34/52,609.41 = 21,127.43/x
  3. Step 3: Cross multiply
    38,123.34x = 52,609.41 × 21,127.43
  4. Step 4: Simplify right side
    38,123.34x = 1,111,501,364.07
  5. Step 5: Solve for x
    x = 1,111,501,364.07/38,123.34
  6. Step 6: Final answer
    x = 29,155.40

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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.