Home / 26,784.60-36,965.64-15,456.72

Finding the Fourth Proportional to 26,784.60, 36,965.64 and 15,456.72

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Solution

The fourth proportional to 26,784.60, 36,965.64 and 15,456.72 is: 21,331.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,784.60 : 36,965.64 = 15,456.72 : x
  2. Step 2: Convert to fraction form
    26,784.60/36,965.64 = 15,456.72/x
  3. Step 3: Cross multiply
    26,784.60x = 36,965.64 × 15,456.72
  4. Step 4: Simplify right side
    26,784.60x = 571,367,547.10
  5. Step 5: Solve for x
    x = 571,367,547.10/26,784.60
  6. Step 6: Final answer
    x = 21,331.94

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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.