Home / 42,441.30-63,615.45-21,347.70

Finding the Fourth Proportional to 42,441.30, 63,615.45 and 21,347.70

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Solution

The fourth proportional to 42,441.30, 63,615.45 and 21,347.70 is: 31,998.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,441.30 : 63,615.45 = 21,347.70 : x
  2. Step 2: Convert to fraction form
    42,441.30/63,615.45 = 21,347.70/x
  3. Step 3: Cross multiply
    42,441.30x = 63,615.45 × 21,347.70
  4. Step 4: Simplify right side
    42,441.30x = 1,358,043,541.97
  5. Step 5: Solve for x
    x = 1,358,043,541.97/42,441.30
  6. Step 6: Final answer
    x = 31,998.16

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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.