Home / 23,050.08-31,780-15,079.68

Finding the Fourth Proportional to 23,050.08, 31,780 and 15,079.68

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Solution

The fourth proportional to 23,050.08, 31,780 and 15,079.68 is: 20,790.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,050.08 : 31,780 = 15,079.68 : x
  2. Step 2: Convert to fraction form
    23,050.08/31,780 = 15,079.68/x
  3. Step 3: Cross multiply
    23,050.08x = 31,780 × 15,079.68
  4. Step 4: Simplify right side
    23,050.08x = 479,232,230.40
  5. Step 5: Solve for x
    x = 479,232,230.40/23,050.08
  6. Step 6: Final answer
    x = 20,790.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.