Home / 42,157.04-63,242.42-19,690.18

Finding the Fourth Proportional to 42,157.04, 63,242.42 and 19,690.18

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Solution

The fourth proportional to 42,157.04, 63,242.42 and 19,690.18 is: 29,538.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,157.04 : 63,242.42 = 19,690.18 : x
  2. Step 2: Convert to fraction form
    42,157.04/63,242.42 = 19,690.18/x
  3. Step 3: Cross multiply
    42,157.04x = 63,242.42 × 19,690.18
  4. Step 4: Simplify right side
    42,157.04x = 1,245,254,376.88
  5. Step 5: Solve for x
    x = 1,245,254,376.88/42,157.04
  6. Step 6: Final answer
    x = 29,538.47

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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.