Home / 42,005.79-63,008.69-28,818.18

Finding the Fourth Proportional to 42,005.79, 63,008.69 and 28,818.18

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Solution

The fourth proportional to 42,005.79, 63,008.69 and 28,818.18 is: 43,227.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,005.79 : 63,008.69 = 28,818.18 : x
  2. Step 2: Convert to fraction form
    42,005.79/63,008.69 = 28,818.18/x
  3. Step 3: Cross multiply
    42,005.79x = 63,008.69 × 28,818.18
  4. Step 4: Simplify right side
    42,005.79x = 1,815,795,625.89
  5. Step 5: Solve for x
    x = 1,815,795,625.89/42,005.79
  6. Step 6: Final answer
    x = 43,227.27

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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.