Home / 25,613.05-35,345.59-15,000.43

Finding the Fourth Proportional to 25,613.05, 35,345.59 and 15,000.43

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Solution

The fourth proportional to 25,613.05, 35,345.59 and 15,000.43 is: 20,700.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,613.05 : 35,345.59 = 15,000.43 : x
  2. Step 2: Convert to fraction form
    25,613.05/35,345.59 = 15,000.43/x
  3. Step 3: Cross multiply
    25,613.05x = 35,345.59 × 15,000.43
  4. Step 4: Simplify right side
    25,613.05x = 530,199,048.60
  5. Step 5: Solve for x
    x = 530,199,048.60/25,613.05
  6. Step 6: Final answer
    x = 20,700.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.