Home / 42,889.01-64,330.43-13,306.07

Finding the Fourth Proportional to 42,889.01, 64,330.43 and 13,306.07

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Solution

The fourth proportional to 42,889.01, 64,330.43 and 13,306.07 is: 19,958.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,889.01 : 64,330.43 = 13,306.07 : x
  2. Step 2: Convert to fraction form
    42,889.01/64,330.43 = 13,306.07/x
  3. Step 3: Cross multiply
    42,889.01x = 64,330.43 × 13,306.07
  4. Step 4: Simplify right side
    42,889.01x = 855,985,299.01
  5. Step 5: Solve for x
    x = 855,985,299.01/42,889.01
  6. Step 6: Final answer
    x = 19,958.15

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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.