Home / 28,505.84-42,732.76-10,988.72

Finding the Fourth Proportional to 28,505.84, 42,732.76 and 10,988.72

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Solution

The fourth proportional to 28,505.84, 42,732.76 and 10,988.72 is: 16,473.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,505.84 : 42,732.76 = 10,988.72 : x
  2. Step 2: Convert to fraction form
    28,505.84/42,732.76 = 10,988.72/x
  3. Step 3: Cross multiply
    28,505.84x = 42,732.76 × 10,988.72
  4. Step 4: Simplify right side
    28,505.84x = 469,578,334.47
  5. Step 5: Solve for x
    x = 469,578,334.47/28,505.84
  6. Step 6: Final answer
    x = 16,473.06

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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.