Home / 31,376.67-43,302.12-19,442.33

Finding the Fourth Proportional to 31,376.67, 43,302.12 and 19,442.33

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Solution

The fourth proportional to 31,376.67, 43,302.12 and 19,442.33 is: 26,831.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,376.67 : 43,302.12 = 19,442.33 : x
  2. Step 2: Convert to fraction form
    31,376.67/43,302.12 = 19,442.33/x
  3. Step 3: Cross multiply
    31,376.67x = 43,302.12 × 19,442.33
  4. Step 4: Simplify right side
    31,376.67x = 841,894,332.64
  5. Step 5: Solve for x
    x = 841,894,332.64/31,376.67
  6. Step 6: Final answer
    x = 26,831.86

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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.