Home / 28,076.89-38,711.08-17,988.74

Finding the Fourth Proportional to 28,076.89, 38,711.08 and 17,988.74

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Solution

The fourth proportional to 28,076.89, 38,711.08 and 17,988.74 is: 24,802.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,076.89 : 38,711.08 = 17,988.74 : x
  2. Step 2: Convert to fraction form
    28,076.89/38,711.08 = 17,988.74/x
  3. Step 3: Cross multiply
    28,076.89x = 38,711.08 × 17,988.74
  4. Step 4: Simplify right side
    28,076.89x = 696,363,553.24
  5. Step 5: Solve for x
    x = 696,363,553.24/28,076.89
  6. Step 6: Final answer
    x = 24,802.02

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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.