Home / 28,525.86-42,770.57-13,705.29

Finding the Fourth Proportional to 28,525.86, 42,770.57 and 13,705.29

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Solution

The fourth proportional to 28,525.86, 42,770.57 and 13,705.29 is: 20,549.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,525.86 : 42,770.57 = 13,705.29 : x
  2. Step 2: Convert to fraction form
    28,525.86/42,770.57 = 13,705.29/x
  3. Step 3: Cross multiply
    28,525.86x = 42,770.57 × 13,705.29
  4. Step 4: Simplify right side
    28,525.86x = 586,182,996.79
  5. Step 5: Solve for x
    x = 586,182,996.79/28,525.86
  6. Step 6: Final answer
    x = 20,549.18

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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.