Home / 27,918.40-38,529.52-15,985.44

Finding the Fourth Proportional to 27,918.40, 38,529.52 and 15,985.44

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Solution

The fourth proportional to 27,918.40, 38,529.52 and 15,985.44 is: 22,061.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,918.40 : 38,529.52 = 15,985.44 : x
  2. Step 2: Convert to fraction form
    27,918.40/38,529.52 = 15,985.44/x
  3. Step 3: Cross multiply
    27,918.40x = 38,529.52 × 15,985.44
  4. Step 4: Simplify right side
    27,918.40x = 615,911,330.19
  5. Step 5: Solve for x
    x = 615,911,330.19/27,918.40
  6. Step 6: Final answer
    x = 22,061.13

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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.