Home / 43,213.80-64,820.70-25,426.20

Finding the Fourth Proportional to 43,213.80, 64,820.70 and 25,426.20

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Solution

The fourth proportional to 43,213.80, 64,820.70 and 25,426.20 is: 38,139.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,213.80 : 64,820.70 = 25,426.20 : x
  2. Step 2: Convert to fraction form
    43,213.80/64,820.70 = 25,426.20/x
  3. Step 3: Cross multiply
    43,213.80x = 64,820.70 × 25,426.20
  4. Step 4: Simplify right side
    43,213.80x = 1,648,144,082.34
  5. Step 5: Solve for x
    x = 1,648,144,082.34/43,213.80
  6. Step 6: Final answer
    x = 38,139.30

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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.