Home / 27,107.12-40,637.28-10,478.80

Finding the Fourth Proportional to 27,107.12, 40,637.28 and 10,478.80

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Solution

The fourth proportional to 27,107.12, 40,637.28 and 10,478.80 is: 15,709.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,107.12 : 40,637.28 = 10,478.80 : x
  2. Step 2: Convert to fraction form
    27,107.12/40,637.28 = 10,478.80/x
  3. Step 3: Cross multiply
    27,107.12x = 40,637.28 × 10,478.80
  4. Step 4: Simplify right side
    27,107.12x = 425,829,929.66
  5. Step 5: Solve for x
    x = 425,829,929.66/27,107.12
  6. Step 6: Final answer
    x = 15,709.15

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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.