Home / 21,032.06-31,482.48-15,491.66

Finding the Fourth Proportional to 21,032.06, 31,482.48 and 15,491.66

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Solution

The fourth proportional to 21,032.06, 31,482.48 and 15,491.66 is: 23,189.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,032.06 : 31,482.48 = 15,491.66 : x
  2. Step 2: Convert to fraction form
    21,032.06/31,482.48 = 15,491.66/x
  3. Step 3: Cross multiply
    21,032.06x = 31,482.48 × 15,491.66
  4. Step 4: Simplify right side
    21,032.06x = 487,715,876.12
  5. Step 5: Solve for x
    x = 487,715,876.12/21,032.06
  6. Step 6: Final answer
    x = 23,189.16

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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.