Home / 40,047.08-59,983.12-20,291.72

Finding the Fourth Proportional to 40,047.08, 59,983.12 and 20,291.72

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Solution

The fourth proportional to 40,047.08, 59,983.12 and 20,291.72 is: 30,393.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,047.08 : 59,983.12 = 20,291.72 : x
  2. Step 2: Convert to fraction form
    40,047.08/59,983.12 = 20,291.72/x
  3. Step 3: Cross multiply
    40,047.08x = 59,983.12 × 20,291.72
  4. Step 4: Simplify right side
    40,047.08x = 1,217,160,675.77
  5. Step 5: Solve for x
    x = 1,217,160,675.77/40,047.08
  6. Step 6: Final answer
    x = 30,393.24

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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.