Home / 15,257.65-22,977.91-13,428.76

Finding the Fourth Proportional to 15,257.65, 22,977.91 and 13,428.76

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Solution

The fourth proportional to 15,257.65, 22,977.91 and 13,428.76 is: 20,223.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,257.65 : 22,977.91 = 13,428.76 : x
  2. Step 2: Convert to fraction form
    15,257.65/22,977.91 = 13,428.76/x
  3. Step 3: Cross multiply
    15,257.65x = 22,977.91 × 13,428.76
  4. Step 4: Simplify right side
    15,257.65x = 308,564,838.69
  5. Step 5: Solve for x
    x = 308,564,838.69/15,257.65
  6. Step 6: Final answer
    x = 20,223.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.