Home / 39,959.64-59,931.18-18,890.73

Finding the Fourth Proportional to 39,959.64, 59,931.18 and 18,890.73

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Solution

The fourth proportional to 39,959.64, 59,931.18 and 18,890.73 is: 28,332.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,959.64 : 59,931.18 = 18,890.73 : x
  2. Step 2: Convert to fraction form
    39,959.64/59,931.18 = 18,890.73/x
  3. Step 3: Cross multiply
    39,959.64x = 59,931.18 × 18,890.73
  4. Step 4: Simplify right side
    39,959.64x = 1,132,143,739.96
  5. Step 5: Solve for x
    x = 1,132,143,739.96/39,959.64
  6. Step 6: Final answer
    x = 28,332.18

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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.