Home / 20,013.95-30,026.11-10,646.25

Finding the Fourth Proportional to 20,013.95, 30,026.11 and 10,646.25

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Solution

The fourth proportional to 20,013.95, 30,026.11 and 10,646.25 is: 15,972.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,013.95 : 30,026.11 = 10,646.25 : x
  2. Step 2: Convert to fraction form
    20,013.95/30,026.11 = 10,646.25/x
  3. Step 3: Cross multiply
    20,013.95x = 30,026.11 × 10,646.25
  4. Step 4: Simplify right side
    20,013.95x = 319,665,523.23
  5. Step 5: Solve for x
    x = 319,665,523.23/20,013.95
  6. Step 6: Final answer
    x = 15,972.13

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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.