Home / 39,135.25-58,675.51-12,472.30

Finding the Fourth Proportional to 39,135.25, 58,675.51 and 12,472.30

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Solution

The fourth proportional to 39,135.25, 58,675.51 and 12,472.30 is: 18,699.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,135.25 : 58,675.51 = 12,472.30 : x
  2. Step 2: Convert to fraction form
    39,135.25/58,675.51 = 12,472.30/x
  3. Step 3: Cross multiply
    39,135.25x = 58,675.51 × 12,472.30
  4. Step 4: Simplify right side
    39,135.25x = 731,818,207.63
  5. Step 5: Solve for x
    x = 731,818,207.63/39,135.25
  6. Step 6: Final answer
    x = 18,699.72

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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.