Home / 38,520.93-53,159.19-21,753.93

Finding the Fourth Proportional to 38,520.93, 53,159.19 and 21,753.93

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Solution

The fourth proportional to 38,520.93, 53,159.19 and 21,753.93 is: 30,020.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,520.93 : 53,159.19 = 21,753.93 : x
  2. Step 2: Convert to fraction form
    38,520.93/53,159.19 = 21,753.93/x
  3. Step 3: Cross multiply
    38,520.93x = 53,159.19 × 21,753.93
  4. Step 4: Simplify right side
    38,520.93x = 1,156,421,298.12
  5. Step 5: Solve for x
    x = 1,156,421,298.12/38,520.93
  6. Step 6: Final answer
    x = 30,020.60

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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.