Home / 31,428.64-47,111.82-14,758.83

Finding the Fourth Proportional to 31,428.64, 47,111.82 and 14,758.83

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Solution

The fourth proportional to 31,428.64, 47,111.82 and 14,758.83 is: 22,123.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,428.64 : 47,111.82 = 14,758.83 : x
  2. Step 2: Convert to fraction form
    31,428.64/47,111.82 = 14,758.83/x
  3. Step 3: Cross multiply
    31,428.64x = 47,111.82 × 14,758.83
  4. Step 4: Simplify right side
    31,428.64x = 695,315,537.49
  5. Step 5: Solve for x
    x = 695,315,537.49/31,428.64
  6. Step 6: Final answer
    x = 22,123.63

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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.