Home / 26,905.40-40,358.14-12,862.13

Finding the Fourth Proportional to 26,905.40, 40,358.14 and 12,862.13

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Solution

The fourth proportional to 26,905.40, 40,358.14 and 12,862.13 is: 19,293.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,905.40 : 40,358.14 = 12,862.13 : x
  2. Step 2: Convert to fraction form
    26,905.40/40,358.14 = 12,862.13/x
  3. Step 3: Cross multiply
    26,905.40x = 40,358.14 × 12,862.13
  4. Step 4: Simplify right side
    26,905.40x = 519,091,409.29
  5. Step 5: Solve for x
    x = 519,091,409.29/26,905.40
  6. Step 6: Final answer
    x = 19,293.21

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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.