Home / 21,521.84-32,275.06-7,478.46

Finding the Fourth Proportional to 21,521.84, 32,275.06 and 7,478.46

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Solution

The fourth proportional to 21,521.84, 32,275.06 and 7,478.46 is: 11,215.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,521.84 : 32,275.06 = 7,478.46 : x
  2. Step 2: Convert to fraction form
    21,521.84/32,275.06 = 7,478.46/x
  3. Step 3: Cross multiply
    21,521.84x = 32,275.06 × 7,478.46
  4. Step 4: Simplify right side
    21,521.84x = 241,367,726.51
  5. Step 5: Solve for x
    x = 241,367,726.51/21,521.84
  6. Step 6: Final answer
    x = 11,215.02

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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.