Home / 42,153.42-63,281.07-19,685.46

Finding the Fourth Proportional to 42,153.42, 63,281.07 and 19,685.46

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Solution

The fourth proportional to 42,153.42, 63,281.07 and 19,685.46 is: 29,551.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,153.42 : 63,281.07 = 19,685.46 : x
  2. Step 2: Convert to fraction form
    42,153.42/63,281.07 = 19,685.46/x
  3. Step 3: Cross multiply
    42,153.42x = 63,281.07 × 19,685.46
  4. Step 4: Simplify right side
    42,153.42x = 1,245,716,972.24
  5. Step 5: Solve for x
    x = 1,245,716,972.24/42,153.42
  6. Step 6: Final answer
    x = 29,551.98

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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.