Home / 19,520.19-29,271.51-13,281.71

Finding the Fourth Proportional to 19,520.19, 29,271.51 and 13,281.71

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Solution

The fourth proportional to 19,520.19, 29,271.51 and 13,281.71 is: 19,916.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,520.19 : 29,271.51 = 13,281.71 : x
  2. Step 2: Convert to fraction form
    19,520.19/29,271.51 = 13,281.71/x
  3. Step 3: Cross multiply
    19,520.19x = 29,271.51 × 13,281.71
  4. Step 4: Simplify right side
    19,520.19x = 388,775,560.72
  5. Step 5: Solve for x
    x = 388,775,560.72/19,520.19
  6. Step 6: Final answer
    x = 19,916.59

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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.