Home / 26,640.84-39,985.92-13,502.40

Finding the Fourth Proportional to 26,640.84, 39,985.92 and 13,502.40

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Solution

The fourth proportional to 26,640.84, 39,985.92 and 13,502.40 is: 20,266.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,640.84 : 39,985.92 = 13,502.40 : x
  2. Step 2: Convert to fraction form
    26,640.84/39,985.92 = 13,502.40/x
  3. Step 3: Cross multiply
    26,640.84x = 39,985.92 × 13,502.40
  4. Step 4: Simplify right side
    26,640.84x = 539,905,886.21
  5. Step 5: Solve for x
    x = 539,905,886.21/26,640.84
  6. Step 6: Final answer
    x = 20,266.10

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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.