Home / 31,097.04-42,939.23-25,355.45

Finding the Fourth Proportional to 31,097.04, 42,939.23 and 25,355.45

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Solution

The fourth proportional to 31,097.04, 42,939.23 and 25,355.45 is: 35,011.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,097.04 : 42,939.23 = 25,355.45 : x
  2. Step 2: Convert to fraction form
    31,097.04/42,939.23 = 25,355.45/x
  3. Step 3: Cross multiply
    31,097.04x = 42,939.23 × 25,355.45
  4. Step 4: Simplify right side
    31,097.04x = 1,088,743,157.83
  5. Step 5: Solve for x
    x = 1,088,743,157.83/31,097.04
  6. Step 6: Final answer
    x = 35,011.15

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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.