Home / 21,275.95-31,904.68-7,232.20

Finding the Fourth Proportional to 21,275.95, 31,904.68 and 7,232.20

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Solution

The fourth proportional to 21,275.95, 31,904.68 and 7,232.20 is: 10,845.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275.95 : 31,904.68 = 7,232.20 : x
  2. Step 2: Convert to fraction form
    21,275.95/31,904.68 = 7,232.20/x
  3. Step 3: Cross multiply
    21,275.95x = 31,904.68 × 7,232.20
  4. Step 4: Simplify right side
    21,275.95x = 230,740,867.17
  5. Step 5: Solve for x
    x = 230,740,867.17/21,275.95
  6. Step 6: Final answer
    x = 10,845.15

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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.