Home / 19,721.39-29,590.76-10,359.23

Finding the Fourth Proportional to 19,721.39, 29,590.76 and 10,359.23

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Solution

The fourth proportional to 19,721.39, 29,590.76 and 10,359.23 is: 15,543.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,721.39 : 29,590.76 = 10,359.23 : x
  2. Step 2: Convert to fraction form
    19,721.39/29,590.76 = 10,359.23/x
  3. Step 3: Cross multiply
    19,721.39x = 29,590.76 × 10,359.23
  4. Step 4: Simplify right side
    19,721.39x = 306,537,510.90
  5. Step 5: Solve for x
    x = 306,537,510.90/19,721.39
  6. Step 6: Final answer
    x = 15,543.40

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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.