Home / 42,856.20-64,274.40-16,205.04

Finding the Fourth Proportional to 42,856.20, 64,274.40 and 16,205.04

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Solution

The fourth proportional to 42,856.20, 64,274.40 and 16,205.04 is: 24,303.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,856.20 : 64,274.40 = 16,205.04 : x
  2. Step 2: Convert to fraction form
    42,856.20/64,274.40 = 16,205.04/x
  3. Step 3: Cross multiply
    42,856.20x = 64,274.40 × 16,205.04
  4. Step 4: Simplify right side
    42,856.20x = 1,041,569,222.98
  5. Step 5: Solve for x
    x = 1,041,569,222.98/42,856.20
  6. Step 6: Final answer
    x = 24,303.82

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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.