Home / 22,891.76-31,574.29-21,009.41

Finding the Fourth Proportional to 22,891.76, 31,574.29 and 21,009.41

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Solution

The fourth proportional to 22,891.76, 31,574.29 and 21,009.41 is: 28,977.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,891.76 : 31,574.29 = 21,009.41 : x
  2. Step 2: Convert to fraction form
    22,891.76/31,574.29 = 21,009.41/x
  3. Step 3: Cross multiply
    22,891.76x = 31,574.29 × 21,009.41
  4. Step 4: Simplify right side
    22,891.76x = 663,357,204.07
  5. Step 5: Solve for x
    x = 663,357,204.07/22,891.76
  6. Step 6: Final answer
    x = 28,977.99

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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.