Home / 47,613.12-71,429.64-18,030.28

Finding the Fourth Proportional to 47,613.12, 71,429.64 and 18,030.28

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Solution

The fourth proportional to 47,613.12, 71,429.64 and 18,030.28 is: 27,049.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,613.12 : 71,429.64 = 18,030.28 : x
  2. Step 2: Convert to fraction form
    47,613.12/71,429.64 = 18,030.28/x
  3. Step 3: Cross multiply
    47,613.12x = 71,429.64 × 18,030.28
  4. Step 4: Simplify right side
    47,613.12x = 1,287,896,409.50
  5. Step 5: Solve for x
    x = 1,287,896,409.50/47,613.12
  6. Step 6: Final answer
    x = 27,049.19

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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.