Home / 31,888.65-44,016.12-20,558.16

Finding the Fourth Proportional to 31,888.65, 44,016.12 and 20,558.16

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Solution

The fourth proportional to 31,888.65, 44,016.12 and 20,558.16 is: 28,376.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,888.65 : 44,016.12 = 20,558.16 : x
  2. Step 2: Convert to fraction form
    31,888.65/44,016.12 = 20,558.16/x
  3. Step 3: Cross multiply
    31,888.65x = 44,016.12 × 20,558.16
  4. Step 4: Simplify right side
    31,888.65x = 904,890,437.54
  5. Step 5: Solve for x
    x = 904,890,437.54/31,888.65
  6. Step 6: Final answer
    x = 28,376.57

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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.