Home / 25,681.86-35,417.25-19,713.78

Finding the Fourth Proportional to 25,681.86, 35,417.25 and 19,713.78

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Solution

The fourth proportional to 25,681.86, 35,417.25 and 19,713.78 is: 27,186.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,681.86 : 35,417.25 = 19,713.78 : x
  2. Step 2: Convert to fraction form
    25,681.86/35,417.25 = 19,713.78/x
  3. Step 3: Cross multiply
    25,681.86x = 35,417.25 × 19,713.78
  4. Step 4: Simplify right side
    25,681.86x = 698,207,874.71
  5. Step 5: Solve for x
    x = 698,207,874.71/25,681.86
  6. Step 6: Final answer
    x = 27,186.81

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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.