Home / 19,443.20-29,145.60-9,574.40

Finding the Fourth Proportional to 19,443.20, 29,145.60 and 9,574.40

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Solution

The fourth proportional to 19,443.20, 29,145.60 and 9,574.40 is: 14,352.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,443.20 : 29,145.60 = 9,574.40 : x
  2. Step 2: Convert to fraction form
    19,443.20/29,145.60 = 9,574.40/x
  3. Step 3: Cross multiply
    19,443.20x = 29,145.60 × 9,574.40
  4. Step 4: Simplify right side
    19,443.20x = 279,051,632.64
  5. Step 5: Solve for x
    x = 279,051,632.64/19,443.20
  6. Step 6: Final answer
    x = 14,352.15

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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.