Home / 39,970.72-59,905.68-20,254.24

Finding the Fourth Proportional to 39,970.72, 59,905.68 and 20,254.24

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Solution

The fourth proportional to 39,970.72, 59,905.68 and 20,254.24 is: 30,355.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,970.72 : 59,905.68 = 20,254.24 : x
  2. Step 2: Convert to fraction form
    39,970.72/59,905.68 = 20,254.24/x
  3. Step 3: Cross multiply
    39,970.72x = 59,905.68 × 20,254.24
  4. Step 4: Simplify right side
    39,970.72x = 1,213,344,020.08
  5. Step 5: Solve for x
    x = 1,213,344,020.08/39,970.72
  6. Step 6: Final answer
    x = 30,355.82

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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.