Home / 42,135.74-63,207.39-10,971.26

Finding the Fourth Proportional to 42,135.74, 63,207.39 and 10,971.26

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Solution

The fourth proportional to 42,135.74, 63,207.39 and 10,971.26 is: 16,457.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,135.74 : 63,207.39 = 10,971.26 : x
  2. Step 2: Convert to fraction form
    42,135.74/63,207.39 = 10,971.26/x
  3. Step 3: Cross multiply
    42,135.74x = 63,207.39 × 10,971.26
  4. Step 4: Simplify right side
    42,135.74x = 693,464,709.61
  5. Step 5: Solve for x
    x = 693,464,709.61/42,135.74
  6. Step 6: Final answer
    x = 16,457.87

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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.