Home / 42,793.04-64,186.56-13,207.76

Finding the Fourth Proportional to 42,793.04, 64,186.56 and 13,207.76

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Solution

The fourth proportional to 42,793.04, 64,186.56 and 13,207.76 is: 19,810.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,793.04 : 64,186.56 = 13,207.76 : x
  2. Step 2: Convert to fraction form
    42,793.04/64,186.56 = 13,207.76/x
  3. Step 3: Cross multiply
    42,793.04x = 64,186.56 × 13,207.76
  4. Step 4: Simplify right side
    42,793.04x = 847,760,679.71
  5. Step 5: Solve for x
    x = 847,760,679.71/42,793.04
  6. Step 6: Final answer
    x = 19,810.71

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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.