Home / 17,987.81-24,831.99-13,945.70

Finding the Fourth Proportional to 17,987.81, 24,831.99 and 13,945.70

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Solution

The fourth proportional to 17,987.81, 24,831.99 and 13,945.70 is: 19,251.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,987.81 : 24,831.99 = 13,945.70 : x
  2. Step 2: Convert to fraction form
    17,987.81/24,831.99 = 13,945.70/x
  3. Step 3: Cross multiply
    17,987.81x = 24,831.99 × 13,945.70
  4. Step 4: Simplify right side
    17,987.81x = 346,299,482.94
  5. Step 5: Solve for x
    x = 346,299,482.94/17,987.81
  6. Step 6: Final answer
    x = 19,251.90

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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.