Home / 25,996.16-35,877.48-15,931.28

Finding the Fourth Proportional to 25,996.16, 35,877.48 and 15,931.28

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Solution

The fourth proportional to 25,996.16, 35,877.48 and 15,931.28 is: 21,986.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,996.16 : 35,877.48 = 15,931.28 : x
  2. Step 2: Convert to fraction form
    25,996.16/35,877.48 = 15,931.28/x
  3. Step 3: Cross multiply
    25,996.16x = 35,877.48 × 15,931.28
  4. Step 4: Simplify right side
    25,996.16x = 571,574,179.57
  5. Step 5: Solve for x
    x = 571,574,179.57/25,996.16
  6. Step 6: Final answer
    x = 21,986.87

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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.