Home / 31,378.34-43,302.35-17,948.77

Finding the Fourth Proportional to 31,378.34, 43,302.35 and 17,948.77

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Solution

The fourth proportional to 31,378.34, 43,302.35 and 17,948.77 is: 24,769.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,378.34 : 43,302.35 = 17,948.77 : x
  2. Step 2: Convert to fraction form
    31,378.34/43,302.35 = 17,948.77/x
  3. Step 3: Cross multiply
    31,378.34x = 43,302.35 × 17,948.77
  4. Step 4: Simplify right side
    31,378.34x = 777,223,920.61
  5. Step 5: Solve for x
    x = 777,223,920.61/31,378.34
  6. Step 6: Final answer
    x = 24,769.44

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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.