Home / 42,156.30-63,235.53-19,964.46

Finding the Fourth Proportional to 42,156.30, 63,235.53 and 19,964.46

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Solution

The fourth proportional to 42,156.30, 63,235.53 and 19,964.46 is: 29,947.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,156.30 : 63,235.53 = 19,964.46 : x
  2. Step 2: Convert to fraction form
    42,156.30/63,235.53 = 19,964.46/x
  3. Step 3: Cross multiply
    42,156.30x = 63,235.53 × 19,964.46
  4. Step 4: Simplify right side
    42,156.30x = 1,262,463,209.26
  5. Step 5: Solve for x
    x = 1,262,463,209.26/42,156.30
  6. Step 6: Final answer
    x = 29,947.20

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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.