Home / 19,395.81-29,039.50-10,479.19

Finding the Fourth Proportional to 19,395.81, 29,039.50 and 10,479.19

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Solution

The fourth proportional to 19,395.81, 29,039.50 and 10,479.19 is: 15,689.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,395.81 : 29,039.50 = 10,479.19 : x
  2. Step 2: Convert to fraction form
    19,395.81/29,039.50 = 10,479.19/x
  3. Step 3: Cross multiply
    19,395.81x = 29,039.50 × 10,479.19
  4. Step 4: Simplify right side
    19,395.81x = 304,310,385.61
  5. Step 5: Solve for x
    x = 304,310,385.61/19,395.81
  6. Step 6: Final answer
    x = 15,689.50

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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.