Home / 25,390.62-35,017.34-15,316.92

Finding the Fourth Proportional to 25,390.62, 35,017.34 and 15,316.92

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Solution

The fourth proportional to 25,390.62, 35,017.34 and 15,316.92 is: 21,124.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,390.62 : 35,017.34 = 15,316.92 : x
  2. Step 2: Convert to fraction form
    25,390.62/35,017.34 = 15,316.92/x
  3. Step 3: Cross multiply
    25,390.62x = 35,017.34 × 15,316.92
  4. Step 4: Simplify right side
    25,390.62x = 536,357,718.81
  5. Step 5: Solve for x
    x = 536,357,718.81/25,390.62
  6. Step 6: Final answer
    x = 21,124.25

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Double scale
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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.