Home / 20,625.96-28,482.80-19,521.12

Finding the Fourth Proportional to 20,625.96, 28,482.80 and 19,521.12

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Solution

The fourth proportional to 20,625.96, 28,482.80 and 19,521.12 is: 26,957.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,625.96 : 28,482.80 = 19,521.12 : x
  2. Step 2: Convert to fraction form
    20,625.96/28,482.80 = 19,521.12/x
  3. Step 3: Cross multiply
    20,625.96x = 28,482.80 × 19,521.12
  4. Step 4: Simplify right side
    20,625.96x = 556,016,156.74
  5. Step 5: Solve for x
    x = 556,016,156.74/20,625.96
  6. Step 6: Final answer
    x = 26,957.10

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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.