Home / 42,917.05-64,363.27-12,934.19

Finding the Fourth Proportional to 42,917.05, 64,363.27 and 12,934.19

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Solution

The fourth proportional to 42,917.05, 64,363.27 and 12,934.19 is: 19,397.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,917.05 : 64,363.27 = 12,934.19 : x
  2. Step 2: Convert to fraction form
    42,917.05/64,363.27 = 12,934.19/x
  3. Step 3: Cross multiply
    42,917.05x = 64,363.27 × 12,934.19
  4. Step 4: Simplify right side
    42,917.05x = 832,486,457.17
  5. Step 5: Solve for x
    x = 832,486,457.17/42,917.05
  6. Step 6: Final answer
    x = 19,397.57

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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.