Home / 19,423.20-29,135.04-10,653.36

Finding the Fourth Proportional to 19,423.20, 29,135.04 and 10,653.36

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Solution

The fourth proportional to 19,423.20, 29,135.04 and 10,653.36 is: 15,980.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,423.20 : 29,135.04 = 10,653.36 : x
  2. Step 2: Convert to fraction form
    19,423.20/29,135.04 = 10,653.36/x
  3. Step 3: Cross multiply
    19,423.20x = 29,135.04 × 10,653.36
  4. Step 4: Simplify right side
    19,423.20x = 310,386,069.73
  5. Step 5: Solve for x
    x = 310,386,069.73/19,423.20
  6. Step 6: Final answer
    x = 15,980.17

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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.