Home / 28,487.49-42,726.30-7,706.13

Finding the Fourth Proportional to 28,487.49, 42,726.30 and 7,706.13

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Solution

The fourth proportional to 28,487.49, 42,726.30 and 7,706.13 is: 11,557.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,487.49 : 42,726.30 = 7,706.13 : x
  2. Step 2: Convert to fraction form
    28,487.49/42,726.30 = 7,706.13/x
  3. Step 3: Cross multiply
    28,487.49x = 42,726.30 × 7,706.13
  4. Step 4: Simplify right side
    28,487.49x = 329,254,422.22
  5. Step 5: Solve for x
    x = 329,254,422.22/28,487.49
  6. Step 6: Final answer
    x = 11,557.86

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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.