Home / 19,320.40-29,010.30-10,572.40

Finding the Fourth Proportional to 19,320.40, 29,010.30 and 10,572.40

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Solution

The fourth proportional to 19,320.40, 29,010.30 and 10,572.40 is: 15,874.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320.40 : 29,010.30 = 10,572.40 : x
  2. Step 2: Convert to fraction form
    19,320.40/29,010.30 = 10,572.40/x
  3. Step 3: Cross multiply
    19,320.40x = 29,010.30 × 10,572.40
  4. Step 4: Simplify right side
    19,320.40x = 306,708,495.72
  5. Step 5: Solve for x
    x = 306,708,495.72/19,320.40
  6. Step 6: Final answer
    x = 15,874.85

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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.