Home / 19,911.92-29,868.12-13,030.16

Finding the Fourth Proportional to 19,911.92, 29,868.12 and 13,030.16

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Solution

The fourth proportional to 19,911.92, 29,868.12 and 13,030.16 is: 19,545.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,911.92 : 29,868.12 = 13,030.16 : x
  2. Step 2: Convert to fraction form
    19,911.92/29,868.12 = 13,030.16/x
  3. Step 3: Cross multiply
    19,911.92x = 29,868.12 × 13,030.16
  4. Step 4: Simplify right side
    19,911.92x = 389,186,382.50
  5. Step 5: Solve for x
    x = 389,186,382.50/19,911.92
  6. Step 6: Final answer
    x = 19,545.40

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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.