Home / 38,499.40-53,079.78-31,575.04

Finding the Fourth Proportional to 38,499.40, 53,079.78 and 31,575.04

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Solution

The fourth proportional to 38,499.40, 53,079.78 and 31,575.04 is: 43,533.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,499.40 : 53,079.78 = 31,575.04 : x
  2. Step 2: Convert to fraction form
    38,499.40/53,079.78 = 31,575.04/x
  3. Step 3: Cross multiply
    38,499.40x = 53,079.78 × 31,575.04
  4. Step 4: Simplify right side
    38,499.40x = 1,675,996,176.69
  5. Step 5: Solve for x
    x = 1,675,996,176.69/38,499.40
  6. Step 6: Final answer
    x = 43,533.05

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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.