Home / 25,140.80-37,646.40-18,531.20

Finding the Fourth Proportional to 25,140.80, 37,646.40 and 18,531.20

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Solution

The fourth proportional to 25,140.80, 37,646.40 and 18,531.20 is: 27,749.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,140.80 : 37,646.40 = 18,531.20 : x
  2. Step 2: Convert to fraction form
    25,140.80/37,646.40 = 18,531.20/x
  3. Step 3: Cross multiply
    25,140.80x = 37,646.40 × 18,531.20
  4. Step 4: Simplify right side
    25,140.80x = 697,632,967.68
  5. Step 5: Solve for x
    x = 697,632,967.68/25,140.80
  6. Step 6: Final answer
    x = 27,749.04

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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.