Home / 26,172.21-36,122.28-15,417.66

Finding the Fourth Proportional to 26,172.21, 36,122.28 and 15,417.66

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Solution

The fourth proportional to 26,172.21, 36,122.28 and 15,417.66 is: 21,279.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,172.21 : 36,122.28 = 15,417.66 : x
  2. Step 2: Convert to fraction form
    26,172.21/36,122.28 = 15,417.66/x
  3. Step 3: Cross multiply
    26,172.21x = 36,122.28 × 15,417.66
  4. Step 4: Simplify right side
    26,172.21x = 556,921,031.46
  5. Step 5: Solve for x
    x = 556,921,031.46/26,172.21
  6. Step 6: Final answer
    x = 21,279.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.