Home / 26,615.60-36,728.40-15,277.28

Finding the Fourth Proportional to 26,615.60, 36,728.40 and 15,277.28

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Solution

The fourth proportional to 26,615.60, 36,728.40 and 15,277.28 is: 21,082.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,615.60 : 36,728.40 = 15,277.28 : x
  2. Step 2: Convert to fraction form
    26,615.60/36,728.40 = 15,277.28/x
  3. Step 3: Cross multiply
    26,615.60x = 36,728.40 × 15,277.28
  4. Step 4: Simplify right side
    26,615.60x = 561,110,050.75
  5. Step 5: Solve for x
    x = 561,110,050.75/26,615.60
  6. Step 6: Final answer
    x = 21,082.00

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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.