Home / 25,315.80-34,934.91-13,985.10

Finding the Fourth Proportional to 25,315.80, 34,934.91 and 13,985.10

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Solution

The fourth proportional to 25,315.80, 34,934.91 and 13,985.10 is: 19,298.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,315.80 : 34,934.91 = 13,985.10 : x
  2. Step 2: Convert to fraction form
    25,315.80/34,934.91 = 13,985.10/x
  3. Step 3: Cross multiply
    25,315.80x = 34,934.91 × 13,985.10
  4. Step 4: Simplify right side
    25,315.80x = 488,568,209.84
  5. Step 5: Solve for x
    x = 488,568,209.84/25,315.80
  6. Step 6: Final answer
    x = 19,298.94

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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.