Home / 25,382.16-35,011.14-20,358.45

Finding the Fourth Proportional to 25,382.16, 35,011.14 and 20,358.45

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Solution

The fourth proportional to 25,382.16, 35,011.14 and 20,358.45 is: 28,081.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,382.16 : 35,011.14 = 20,358.45 : x
  2. Step 2: Convert to fraction form
    25,382.16/35,011.14 = 20,358.45/x
  3. Step 3: Cross multiply
    25,382.16x = 35,011.14 × 20,358.45
  4. Step 4: Simplify right side
    25,382.16x = 712,772,543.13
  5. Step 5: Solve for x
    x = 712,772,543.13/25,382.16
  6. Step 6: Final answer
    x = 28,081.63

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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.