Home / 42,266.05-63,405.26-12,686.23

Finding the Fourth Proportional to 42,266.05, 63,405.26 and 12,686.23

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Solution

The fourth proportional to 42,266.05, 63,405.26 and 12,686.23 is: 19,031.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,266.05 : 63,405.26 = 12,686.23 : x
  2. Step 2: Convert to fraction form
    42,266.05/63,405.26 = 12,686.23/x
  3. Step 3: Cross multiply
    42,266.05x = 63,405.26 × 12,686.23
  4. Step 4: Simplify right side
    42,266.05x = 804,373,711.57
  5. Step 5: Solve for x
    x = 804,373,711.57/42,266.05
  6. Step 6: Final answer
    x = 19,031.20

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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.