Home / 34,758.32-47,948.90-21,990.02

Finding the Fourth Proportional to 34,758.32, 47,948.90 and 21,990.02

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Solution

The fourth proportional to 34,758.32, 47,948.90 and 21,990.02 is: 30,335.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,758.32 : 47,948.90 = 21,990.02 : x
  2. Step 2: Convert to fraction form
    34,758.32/47,948.90 = 21,990.02/x
  3. Step 3: Cross multiply
    34,758.32x = 47,948.90 × 21,990.02
  4. Step 4: Simplify right side
    34,758.32x = 1,054,396,920.28
  5. Step 5: Solve for x
    x = 1,054,396,920.28/34,758.32
  6. Step 6: Final answer
    x = 30,335.10

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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.