Home / 42,309.87-63,464.81-21,547.95

Finding the Fourth Proportional to 42,309.87, 63,464.81 and 21,547.95

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Solution

The fourth proportional to 42,309.87, 63,464.81 and 21,547.95 is: 32,321.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,309.87 : 63,464.81 = 21,547.95 : x
  2. Step 2: Convert to fraction form
    42,309.87/63,464.81 = 21,547.95/x
  3. Step 3: Cross multiply
    42,309.87x = 63,464.81 × 21,547.95
  4. Step 4: Simplify right side
    42,309.87x = 1,367,536,444.90
  5. Step 5: Solve for x
    x = 1,367,536,444.90/42,309.87
  6. Step 6: Final answer
    x = 32,321.93

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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.