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Finding the Fourth Proportional to 25,135.80, 37,703.70 and 18,574.80

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Solution

The fourth proportional to 25,135.80, 37,703.70 and 18,574.80 is: 27,862.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,135.80 : 37,703.70 = 18,574.80 : x
  2. Step 2: Convert to fraction form
    25,135.80/37,703.70 = 18,574.80/x
  3. Step 3: Cross multiply
    25,135.80x = 37,703.70 × 18,574.80
  4. Step 4: Simplify right side
    25,135.80x = 700,338,686.76
  5. Step 5: Solve for x
    x = 700,338,686.76/25,135.80
  6. Step 6: Final answer
    x = 27,862.20

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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.