Home / 42,493.95-63,742.34-12,911.74

Finding the Fourth Proportional to 42,493.95, 63,742.34 and 12,911.74

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Solution

The fourth proportional to 42,493.95, 63,742.34 and 12,911.74 is: 19,368.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,493.95 : 63,742.34 = 12,911.74 : x
  2. Step 2: Convert to fraction form
    42,493.95/63,742.34 = 12,911.74/x
  3. Step 3: Cross multiply
    42,493.95x = 63,742.34 × 12,911.74
  4. Step 4: Simplify right side
    42,493.95x = 823,024,394.00
  5. Step 5: Solve for x
    x = 823,024,394.00/42,493.95
  6. Step 6: Final answer
    x = 19,368.04

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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.