Home / 28,475.40-42,717.54-13,681.56

Finding the Fourth Proportional to 28,475.40, 42,717.54 and 13,681.56

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Solution

The fourth proportional to 28,475.40, 42,717.54 and 13,681.56 is: 20,524.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,475.40 : 42,717.54 = 13,681.56 : x
  2. Step 2: Convert to fraction form
    28,475.40/42,717.54 = 13,681.56/x
  3. Step 3: Cross multiply
    28,475.40x = 42,717.54 × 13,681.56
  4. Step 4: Simplify right side
    28,475.40x = 584,442,586.56
  5. Step 5: Solve for x
    x = 584,442,586.56/28,475.40
  6. Step 6: Final answer
    x = 20,524.47

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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.