Home / 31,870.38-47,601.69-28,863.93

Finding the Fourth Proportional to 31,870.38, 47,601.69 and 28,863.93

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Solution

The fourth proportional to 31,870.38, 47,601.69 and 28,863.93 is: 43,111.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,870.38 : 47,601.69 = 28,863.93 : x
  2. Step 2: Convert to fraction form
    31,870.38/47,601.69 = 28,863.93/x
  3. Step 3: Cross multiply
    31,870.38x = 47,601.69 × 28,863.93
  4. Step 4: Simplify right side
    31,870.38x = 1,373,971,848.04
  5. Step 5: Solve for x
    x = 1,373,971,848.04/31,870.38
  6. Step 6: Final answer
    x = 43,111.25

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.