Home / 23,428.87-32,331.79-12,818.51

Finding the Fourth Proportional to 23,428.87, 32,331.79 and 12,818.51

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Solution

The fourth proportional to 23,428.87, 32,331.79 and 12,818.51 is: 17,689.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,428.87 : 32,331.79 = 12,818.51 : x
  2. Step 2: Convert to fraction form
    23,428.87/32,331.79 = 12,818.51/x
  3. Step 3: Cross multiply
    23,428.87x = 32,331.79 × 12,818.51
  4. Step 4: Simplify right side
    23,428.87x = 414,445,349.04
  5. Step 5: Solve for x
    x = 414,445,349.04/23,428.87
  6. Step 6: Final answer
    x = 17,689.52

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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.