Home / 42,199.31-63,307.51-18,825.75

Finding the Fourth Proportional to 42,199.31, 63,307.51 and 18,825.75

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Solution

The fourth proportional to 42,199.31, 63,307.51 and 18,825.75 is: 28,242.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,199.31 : 63,307.51 = 18,825.75 : x
  2. Step 2: Convert to fraction form
    42,199.31/63,307.51 = 18,825.75/x
  3. Step 3: Cross multiply
    42,199.31x = 63,307.51 × 18,825.75
  4. Step 4: Simplify right side
    42,199.31x = 1,191,811,309.32
  5. Step 5: Solve for x
    x = 1,191,811,309.32/42,199.31
  6. Step 6: Final answer
    x = 28,242.43

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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.