Home / 19,511.40-29,240.10-15,569.40

Finding the Fourth Proportional to 19,511.40, 29,240.10 and 15,569.40

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Solution

The fourth proportional to 19,511.40, 29,240.10 and 15,569.40 is: 23,332.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,511.40 : 29,240.10 = 15,569.40 : x
  2. Step 2: Convert to fraction form
    19,511.40/29,240.10 = 15,569.40/x
  3. Step 3: Cross multiply
    19,511.40x = 29,240.10 × 15,569.40
  4. Step 4: Simplify right side
    19,511.40x = 455,250,812.94
  5. Step 5: Solve for x
    x = 455,250,812.94/19,511.40
  6. Step 6: Final answer
    x = 23,332.55

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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.