Home / 30,260.81-45,456.90-25,590.20

Finding the Fourth Proportional to 30,260.81, 45,456.90 and 25,590.20

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Solution

The fourth proportional to 30,260.81, 45,456.90 and 25,590.20 is: 38,440.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,260.81 : 45,456.90 = 25,590.20 : x
  2. Step 2: Convert to fraction form
    30,260.81/45,456.90 = 25,590.20/x
  3. Step 3: Cross multiply
    30,260.81x = 45,456.90 × 25,590.20
  4. Step 4: Simplify right side
    30,260.81x = 1,163,250,839.13
  5. Step 5: Solve for x
    x = 1,163,250,839.13/30,260.81
  6. Step 6: Final answer
    x = 38,440.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.