Home / 25,352.80-37,964.40-18,743.20

Finding the Fourth Proportional to 25,352.80, 37,964.40 and 18,743.20

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Solution

The fourth proportional to 25,352.80, 37,964.40 and 18,743.20 is: 28,066.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,352.80 : 37,964.40 = 18,743.20 : x
  2. Step 2: Convert to fraction form
    25,352.80/37,964.40 = 18,743.20/x
  3. Step 3: Cross multiply
    25,352.80x = 37,964.40 × 18,743.20
  4. Step 4: Simplify right side
    25,352.80x = 711,574,342.08
  5. Step 5: Solve for x
    x = 711,574,342.08/25,352.80
  6. Step 6: Final answer
    x = 28,066.89

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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.