Home / 26,312.72-39,438.40-9,660.20

Finding the Fourth Proportional to 26,312.72, 39,438.40 and 9,660.20

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Solution

The fourth proportional to 26,312.72, 39,438.40 and 9,660.20 is: 14,479.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,312.72 : 39,438.40 = 9,660.20 : x
  2. Step 2: Convert to fraction form
    26,312.72/39,438.40 = 9,660.20/x
  3. Step 3: Cross multiply
    26,312.72x = 39,438.40 × 9,660.20
  4. Step 4: Simplify right side
    26,312.72x = 380,982,831.68
  5. Step 5: Solve for x
    x = 380,982,831.68/26,312.72
  6. Step 6: Final answer
    x = 14,479.04

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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.