Home / 38,079.07-52,549.11-21,312.07

Finding the Fourth Proportional to 38,079.07, 52,549.11 and 21,312.07

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Solution

The fourth proportional to 38,079.07, 52,549.11 and 21,312.07 is: 29,410.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,079.07 : 52,549.11 = 21,312.07 : x
  2. Step 2: Convert to fraction form
    38,079.07/52,549.11 = 21,312.07/x
  3. Step 3: Cross multiply
    38,079.07x = 52,549.11 × 21,312.07
  4. Step 4: Simplify right side
    38,079.07x = 1,119,930,310.76
  5. Step 5: Solve for x
    x = 1,119,930,310.76/38,079.07
  6. Step 6: Final answer
    x = 29,410.65

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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.