Home / 42,117.18-63,157.35-15,803.46

Finding the Fourth Proportional to 42,117.18, 63,157.35 and 15,803.46

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Solution

The fourth proportional to 42,117.18, 63,157.35 and 15,803.46 is: 23,698.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,117.18 : 63,157.35 = 15,803.46 : x
  2. Step 2: Convert to fraction form
    42,117.18/63,157.35 = 15,803.46/x
  3. Step 3: Cross multiply
    42,117.18x = 63,157.35 × 15,803.46
  4. Step 4: Simplify right side
    42,117.18x = 998,104,654.43
  5. Step 5: Solve for x
    x = 998,104,654.43/42,117.18
  6. Step 6: Final answer
    x = 23,698.28

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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.