Home / 26,277.60-39,440.70-13,139.40

Finding the Fourth Proportional to 26,277.60, 39,440.70 and 13,139.40

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Solution

The fourth proportional to 26,277.60, 39,440.70 and 13,139.40 is: 19,721.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,277.60 : 39,440.70 = 13,139.40 : x
  2. Step 2: Convert to fraction form
    26,277.60/39,440.70 = 13,139.40/x
  3. Step 3: Cross multiply
    26,277.60x = 39,440.70 × 13,139.40
  4. Step 4: Simplify right side
    26,277.60x = 518,227,133.58
  5. Step 5: Solve for x
    x = 518,227,133.58/26,277.60
  6. Step 6: Final answer
    x = 19,721.25

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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.