Home / 21,108.24-31,663.77-7,069.74

Finding the Fourth Proportional to 21,108.24, 31,663.77 and 7,069.74

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Solution

The fourth proportional to 21,108.24, 31,663.77 and 7,069.74 is: 10,605.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,108.24 : 31,663.77 = 7,069.74 : x
  2. Step 2: Convert to fraction form
    21,108.24/31,663.77 = 7,069.74/x
  3. Step 3: Cross multiply
    21,108.24x = 31,663.77 × 7,069.74
  4. Step 4: Simplify right side
    21,108.24x = 223,854,621.32
  5. Step 5: Solve for x
    x = 223,854,621.32/21,108.24
  6. Step 6: Final answer
    x = 10,605.08

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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.