Home / 42,934.61-64,411.02-12,949.76

Finding the Fourth Proportional to 42,934.61, 64,411.02 and 12,949.76

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Solution

The fourth proportional to 42,934.61, 64,411.02 and 12,949.76 is: 19,427.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,934.61 : 64,411.02 = 12,949.76 : x
  2. Step 2: Convert to fraction form
    42,934.61/64,411.02 = 12,949.76/x
  3. Step 3: Cross multiply
    42,934.61x = 64,411.02 × 12,949.76
  4. Step 4: Simplify right side
    42,934.61x = 834,107,250.36
  5. Step 5: Solve for x
    x = 834,107,250.36/42,934.61
  6. Step 6: Final answer
    x = 19,427.39

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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.