Home / 27,312.68-37,686.12-15,376.52

Finding the Fourth Proportional to 27,312.68, 37,686.12 and 15,376.52

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Solution

The fourth proportional to 27,312.68, 37,686.12 and 15,376.52 is: 21,216.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,312.68 : 37,686.12 = 15,376.52 : x
  2. Step 2: Convert to fraction form
    27,312.68/37,686.12 = 15,376.52/x
  3. Step 3: Cross multiply
    27,312.68x = 37,686.12 × 15,376.52
  4. Step 4: Simplify right side
    27,312.68x = 579,481,377.90
  5. Step 5: Solve for x
    x = 579,481,377.90/27,312.68
  6. Step 6: Final answer
    x = 21,216.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.