Home / 27,557.86-38,023.59-15,618.46

Finding the Fourth Proportional to 27,557.86, 38,023.59 and 15,618.46

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Solution

The fourth proportional to 27,557.86, 38,023.59 and 15,618.46 is: 21,549.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,557.86 : 38,023.59 = 15,618.46 : x
  2. Step 2: Convert to fraction form
    27,557.86/38,023.59 = 15,618.46/x
  3. Step 3: Cross multiply
    27,557.86x = 38,023.59 × 15,618.46
  4. Step 4: Simplify right side
    27,557.86x = 593,869,919.47
  5. Step 5: Solve for x
    x = 593,869,919.47/27,557.86
  6. Step 6: Final answer
    x = 21,549.93

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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.