Home / 31,353.01-47,030.96-7,979.65

Finding the Fourth Proportional to 31,353.01, 47,030.96 and 7,979.65

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Solution

The fourth proportional to 31,353.01, 47,030.96 and 7,979.65 is: 11,969.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,353.01 : 47,030.96 = 7,979.65 : x
  2. Step 2: Convert to fraction form
    31,353.01/47,030.96 = 7,979.65/x
  3. Step 3: Cross multiply
    31,353.01x = 47,030.96 × 7,979.65
  4. Step 4: Simplify right side
    31,353.01x = 375,290,560.07
  5. Step 5: Solve for x
    x = 375,290,560.07/31,353.01
  6. Step 6: Final answer
    x = 11,969.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.