Home / 25,386.24-35,051.49-20,378.01

Finding the Fourth Proportional to 25,386.24, 35,051.49 and 20,378.01

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Solution

The fourth proportional to 25,386.24, 35,051.49 and 20,378.01 is: 28,136.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,386.24 : 35,051.49 = 20,378.01 : x
  2. Step 2: Convert to fraction form
    25,386.24/35,051.49 = 20,378.01/x
  3. Step 3: Cross multiply
    25,386.24x = 35,051.49 × 20,378.01
  4. Step 4: Simplify right side
    25,386.24x = 714,279,613.73
  5. Step 5: Solve for x
    x = 714,279,613.73/25,386.24
  6. Step 6: Final answer
    x = 28,136.49

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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.