Home / 26,985.60-40,459.20-10,339.20

Finding the Fourth Proportional to 26,985.60, 40,459.20 and 10,339.20

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Solution

The fourth proportional to 26,985.60, 40,459.20 and 10,339.20 is: 15,501.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,985.60 : 40,459.20 = 10,339.20 : x
  2. Step 2: Convert to fraction form
    26,985.60/40,459.20 = 10,339.20/x
  3. Step 3: Cross multiply
    26,985.60x = 40,459.20 × 10,339.20
  4. Step 4: Simplify right side
    26,985.60x = 418,315,760.64
  5. Step 5: Solve for x
    x = 418,315,760.64/26,985.60
  6. Step 6: Final answer
    x = 15,501.44

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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.