Home / 34,428.29-47,554.35-28,400.38

Finding the Fourth Proportional to 34,428.29, 47,554.35 and 28,400.38

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Solution

The fourth proportional to 34,428.29, 47,554.35 and 28,400.38 is: 39,228.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,428.29 : 47,554.35 = 28,400.38 : x
  2. Step 2: Convert to fraction form
    34,428.29/47,554.35 = 28,400.38/x
  3. Step 3: Cross multiply
    34,428.29x = 47,554.35 × 28,400.38
  4. Step 4: Simplify right side
    34,428.29x = 1,350,561,491.77
  5. Step 5: Solve for x
    x = 1,350,561,491.77/34,428.29
  6. Step 6: Final answer
    x = 39,228.24

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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.