Home / 27,840.10-38,419.26-15,265.66

Finding the Fourth Proportional to 27,840.10, 38,419.26 and 15,265.66

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Solution

The fourth proportional to 27,840.10, 38,419.26 and 15,265.66 is: 21,066.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,840.10 : 38,419.26 = 15,265.66 : x
  2. Step 2: Convert to fraction form
    27,840.10/38,419.26 = 15,265.66/x
  3. Step 3: Cross multiply
    27,840.10x = 38,419.26 × 15,265.66
  4. Step 4: Simplify right side
    27,840.10x = 586,495,360.61
  5. Step 5: Solve for x
    x = 586,495,360.61/27,840.10
  6. Step 6: Final answer
    x = 21,066.57

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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.