Home / 34,580.12-47,721.51-21,151.13

Finding the Fourth Proportional to 34,580.12, 47,721.51 and 21,151.13

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Solution

The fourth proportional to 34,580.12, 47,721.51 and 21,151.13 is: 29,189.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,580.12 : 47,721.51 = 21,151.13 : x
  2. Step 2: Convert to fraction form
    34,580.12/47,721.51 = 21,151.13/x
  3. Step 3: Cross multiply
    34,580.12x = 47,721.51 × 21,151.13
  4. Step 4: Simplify right side
    34,580.12x = 1,009,363,623.20
  5. Step 5: Solve for x
    x = 1,009,363,623.20/34,580.12
  6. Step 6: Final answer
    x = 29,189.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.