Home / 27,886.22-38,483.02-15,139.40

Finding the Fourth Proportional to 27,886.22, 38,483.02 and 15,139.40

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Solution

The fourth proportional to 27,886.22, 38,483.02 and 15,139.40 is: 20,892.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,886.22 : 38,483.02 = 15,139.40 : x
  2. Step 2: Convert to fraction form
    27,886.22/38,483.02 = 15,139.40/x
  3. Step 3: Cross multiply
    27,886.22x = 38,483.02 × 15,139.40
  4. Step 4: Simplify right side
    27,886.22x = 582,609,810.31
  5. Step 5: Solve for x
    x = 582,609,810.31/27,886.22
  6. Step 6: Final answer
    x = 20,892.39

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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.