Home / 26,424.12-39,615.28-13,087.68

Finding the Fourth Proportional to 26,424.12, 39,615.28 and 13,087.68

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Solution

The fourth proportional to 26,424.12, 39,615.28 and 13,087.68 is: 19,621.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,424.12 : 39,615.28 = 13,087.68 : x
  2. Step 2: Convert to fraction form
    26,424.12/39,615.28 = 13,087.68/x
  3. Step 3: Cross multiply
    26,424.12x = 39,615.28 × 13,087.68
  4. Step 4: Simplify right side
    26,424.12x = 518,471,926.47
  5. Step 5: Solve for x
    x = 518,471,926.47/26,424.12
  6. Step 6: Final answer
    x = 19,621.16

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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.