Home / 26,139.34-39,134.48-17,356.78

Finding the Fourth Proportional to 26,139.34, 39,134.48 and 17,356.78

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Solution

The fourth proportional to 26,139.34, 39,134.48 and 17,356.78 is: 25,985.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,139.34 : 39,134.48 = 17,356.78 : x
  2. Step 2: Convert to fraction form
    26,139.34/39,134.48 = 17,356.78/x
  3. Step 3: Cross multiply
    26,139.34x = 39,134.48 × 17,356.78
  4. Step 4: Simplify right side
    26,139.34x = 679,248,559.77
  5. Step 5: Solve for x
    x = 679,248,559.77/26,139.34
  6. Step 6: Final answer
    x = 25,985.68

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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.