Home / 26,617.51-39,877.05-13,438.40

Finding the Fourth Proportional to 26,617.51, 39,877.05 and 13,438.40

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Solution

The fourth proportional to 26,617.51, 39,877.05 and 13,438.40 is: 20,132.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,617.51 : 39,877.05 = 13,438.40 : x
  2. Step 2: Convert to fraction form
    26,617.51/39,877.05 = 13,438.40/x
  3. Step 3: Cross multiply
    26,617.51x = 39,877.05 × 13,438.40
  4. Step 4: Simplify right side
    26,617.51x = 535,883,748.72
  5. Step 5: Solve for x
    x = 535,883,748.72/26,617.51
  6. Step 6: Final answer
    x = 20,132.76

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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.