Home / 39,443.20-59,150.40-13,148.80

Finding the Fourth Proportional to 39,443.20, 59,150.40 and 13,148.80

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Solution

The fourth proportional to 39,443.20, 59,150.40 and 13,148.80 is: 19,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,443.20 : 59,150.40 = 13,148.80 : x
  2. Step 2: Convert to fraction form
    39,443.20/59,150.40 = 13,148.80/x
  3. Step 3: Cross multiply
    39,443.20x = 59,150.40 × 13,148.80
  4. Step 4: Simplify right side
    39,443.20x = 777,756,779.52
  5. Step 5: Solve for x
    x = 777,756,779.52/39,443.20
  6. Step 6: Final answer
    x = 19,718.40

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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.