Home / 19,590.31-29,387.50-6,443.70

Finding the Fourth Proportional to 19,590.31, 29,387.50 and 6,443.70

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Solution

The fourth proportional to 19,590.31, 29,387.50 and 6,443.70 is: 9,666.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,590.31 : 29,387.50 = 6,443.70 : x
  2. Step 2: Convert to fraction form
    19,590.31/29,387.50 = 6,443.70/x
  3. Step 3: Cross multiply
    19,590.31x = 29,387.50 × 6,443.70
  4. Step 4: Simplify right side
    19,590.31x = 189,364,308.99
  5. Step 5: Solve for x
    x = 189,364,308.99/19,590.31
  6. Step 6: Final answer
    x = 9,666.23

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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.