Home / 43,139.40-64,718.30-24,428.20

Finding the Fourth Proportional to 43,139.40, 64,718.30 and 24,428.20

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Solution

The fourth proportional to 43,139.40, 64,718.30 and 24,428.20 is: 36,647.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,139.40 : 64,718.30 = 24,428.20 : x
  2. Step 2: Convert to fraction form
    43,139.40/64,718.30 = 24,428.20/x
  3. Step 3: Cross multiply
    43,139.40x = 64,718.30 × 24,428.20
  4. Step 4: Simplify right side
    43,139.40x = 1,580,951,576.06
  5. Step 5: Solve for x
    x = 1,580,951,576.06/43,139.40
  6. Step 6: Final answer
    x = 36,647.51

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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.