Home / 28,614.80-42,748.13-18,537.50

Finding the Fourth Proportional to 28,614.80, 42,748.13 and 18,537.50

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Solution

The fourth proportional to 28,614.80, 42,748.13 and 18,537.50 is: 27,693.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,614.80 : 42,748.13 = 18,537.50 : x
  2. Step 2: Convert to fraction form
    28,614.80/42,748.13 = 18,537.50/x
  3. Step 3: Cross multiply
    28,614.80x = 42,748.13 × 18,537.50
  4. Step 4: Simplify right side
    28,614.80x = 792,443,474.06
  5. Step 5: Solve for x
    x = 792,443,474.06/28,614.80
  6. Step 6: Final answer
    x = 27,693.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.