Home / 28,225.47-38,949.06-15,476.61

Finding the Fourth Proportional to 28,225.47, 38,949.06 and 15,476.61

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Solution

The fourth proportional to 28,225.47, 38,949.06 and 15,476.61 is: 21,356.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,225.47 : 38,949.06 = 15,476.61 : x
  2. Step 2: Convert to fraction form
    28,225.47/38,949.06 = 15,476.61/x
  3. Step 3: Cross multiply
    28,225.47x = 38,949.06 × 15,476.61
  4. Step 4: Simplify right side
    28,225.47x = 602,799,411.49
  5. Step 5: Solve for x
    x = 602,799,411.49/28,225.47
  6. Step 6: Final answer
    x = 21,356.58

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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.