Home / 34,139.32-47,115-19,036.88

Finding the Fourth Proportional to 34,139.32, 47,115 and 19,036.88

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Solution

The fourth proportional to 34,139.32, 47,115 and 19,036.88 is: 26,272.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,139.32 : 47,115 = 19,036.88 : x
  2. Step 2: Convert to fraction form
    34,139.32/47,115 = 19,036.88/x
  3. Step 3: Cross multiply
    34,139.32x = 47,115 × 19,036.88
  4. Step 4: Simplify right side
    34,139.32x = 896,922,601.20
  5. Step 5: Solve for x
    x = 896,922,601.20/34,139.32
  6. Step 6: Final answer
    x = 26,272.42

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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.