Home / 26,979.76-40,442.04-10,335.28

Finding the Fourth Proportional to 26,979.76, 40,442.04 and 10,335.28

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Solution

The fourth proportional to 26,979.76, 40,442.04 and 10,335.28 is: 15,492.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,979.76 : 40,442.04 = 10,335.28 : x
  2. Step 2: Convert to fraction form
    26,979.76/40,442.04 = 10,335.28/x
  3. Step 3: Cross multiply
    26,979.76x = 40,442.04 × 10,335.28
  4. Step 4: Simplify right side
    26,979.76x = 417,979,807.17
  5. Step 5: Solve for x
    x = 417,979,807.17/26,979.76
  6. Step 6: Final answer
    x = 15,492.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.