Home / 42,247.76-63,381.63-13,784.56

Finding the Fourth Proportional to 42,247.76, 63,381.63 and 13,784.56

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Solution

The fourth proportional to 42,247.76, 63,381.63 and 13,784.56 is: 20,680.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,247.76 : 63,381.63 = 13,784.56 : x
  2. Step 2: Convert to fraction form
    42,247.76/63,381.63 = 13,784.56/x
  3. Step 3: Cross multiply
    42,247.76x = 63,381.63 × 13,784.56
  4. Step 4: Simplify right side
    42,247.76x = 873,687,881.63
  5. Step 5: Solve for x
    x = 873,687,881.63/42,247.76
  6. Step 6: Final answer
    x = 20,680.10

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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.