Home / 27,710.15-38,239.76-15,134.63

Finding the Fourth Proportional to 27,710.15, 38,239.76 and 15,134.63

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Solution

The fourth proportional to 27,710.15, 38,239.76 and 15,134.63 is: 20,885.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,710.15 : 38,239.76 = 15,134.63 : x
  2. Step 2: Convert to fraction form
    27,710.15/38,239.76 = 15,134.63/x
  3. Step 3: Cross multiply
    27,710.15x = 38,239.76 × 15,134.63
  4. Step 4: Simplify right side
    27,710.15x = 578,744,465.53
  5. Step 5: Solve for x
    x = 578,744,465.53/27,710.15
  6. Step 6: Final answer
    x = 20,885.65

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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.