Home / 21,703.12-32,521-15,052.59

Finding the Fourth Proportional to 21,703.12, 32,521 and 15,052.59

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Solution

The fourth proportional to 21,703.12, 32,521 and 15,052.59 is: 22,555.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,703.12 : 32,521 = 15,052.59 : x
  2. Step 2: Convert to fraction form
    21,703.12/32,521 = 15,052.59/x
  3. Step 3: Cross multiply
    21,703.12x = 32,521 × 15,052.59
  4. Step 4: Simplify right side
    21,703.12x = 489,525,116.79
  5. Step 5: Solve for x
    x = 489,525,116.79/21,703.12
  6. Step 6: Final answer
    x = 22,555.52

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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.