Home / 20,427.30-30,666.86-17,368.74

Finding the Fourth Proportional to 20,427.30, 30,666.86 and 17,368.74

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Solution

The fourth proportional to 20,427.30, 30,666.86 and 17,368.74 is: 26,075.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,427.30 : 30,666.86 = 17,368.74 : x
  2. Step 2: Convert to fraction form
    20,427.30/30,666.86 = 17,368.74/x
  3. Step 3: Cross multiply
    20,427.30x = 30,666.86 × 17,368.74
  4. Step 4: Simplify right side
    20,427.30x = 532,644,717.96
  5. Step 5: Solve for x
    x = 532,644,717.96/20,427.30
  6. Step 6: Final answer
    x = 26,075.14

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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.