Home / 27,312.50-40,930.65-20,643.52

Finding the Fourth Proportional to 27,312.50, 40,930.65 and 20,643.52

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Solution

The fourth proportional to 27,312.50, 40,930.65 and 20,643.52 is: 30,936.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,312.50 : 40,930.65 = 20,643.52 : x
  2. Step 2: Convert to fraction form
    27,312.50/40,930.65 = 20,643.52/x
  3. Step 3: Cross multiply
    27,312.50x = 40,930.65 × 20,643.52
  4. Step 4: Simplify right side
    27,312.50x = 844,952,691.89
  5. Step 5: Solve for x
    x = 844,952,691.89/27,312.50
  6. Step 6: Final answer
    x = 30,936.48

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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.