Home / 27,955.68-38,569.40-18,987.64

Finding the Fourth Proportional to 27,955.68, 38,569.40 and 18,987.64

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Solution

The fourth proportional to 27,955.68, 38,569.40 and 18,987.64 is: 26,196.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,955.68 : 38,569.40 = 18,987.64 : x
  2. Step 2: Convert to fraction form
    27,955.68/38,569.40 = 18,987.64/x
  3. Step 3: Cross multiply
    27,955.68x = 38,569.40 × 18,987.64
  4. Step 4: Simplify right side
    27,955.68x = 732,341,882.22
  5. Step 5: Solve for x
    x = 732,341,882.22/27,955.68
  6. Step 6: Final answer
    x = 26,196.53

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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.