Home / 27,818.56-38,390.10-15,242.56

Finding the Fourth Proportional to 27,818.56, 38,390.10 and 15,242.56

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Solution

The fourth proportional to 27,818.56, 38,390.10 and 15,242.56 is: 21,035.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,818.56 : 38,390.10 = 15,242.56 : x
  2. Step 2: Convert to fraction form
    27,818.56/38,390.10 = 15,242.56/x
  3. Step 3: Cross multiply
    27,818.56x = 38,390.10 × 15,242.56
  4. Step 4: Simplify right side
    27,818.56x = 585,163,402.66
  5. Step 5: Solve for x
    x = 585,163,402.66/27,818.56
  6. Step 6: Final answer
    x = 21,035.00

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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.