Home / 39,139.32-58,708.30-15,765.16

Finding the Fourth Proportional to 39,139.32, 58,708.30 and 15,765.16

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Solution

The fourth proportional to 39,139.32, 58,708.30 and 15,765.16 is: 23,647.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,139.32 : 58,708.30 = 15,765.16 : x
  2. Step 2: Convert to fraction form
    39,139.32/58,708.30 = 15,765.16/x
  3. Step 3: Cross multiply
    39,139.32x = 58,708.30 × 15,765.16
  4. Step 4: Simplify right side
    39,139.32x = 925,545,742.83
  5. Step 5: Solve for x
    x = 925,545,742.83/39,139.32
  6. Step 6: Final answer
    x = 23,647.47

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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.