Home / 22,859.16-31,555.98-13,428.48

Finding the Fourth Proportional to 22,859.16, 31,555.98 and 13,428.48

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Solution

The fourth proportional to 22,859.16, 31,555.98 and 13,428.48 is: 18,537.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,859.16 : 31,555.98 = 13,428.48 : x
  2. Step 2: Convert to fraction form
    22,859.16/31,555.98 = 13,428.48/x
  3. Step 3: Cross multiply
    22,859.16x = 31,555.98 × 13,428.48
  4. Step 4: Simplify right side
    22,859.16x = 423,748,846.31
  5. Step 5: Solve for x
    x = 423,748,846.31/22,859.16
  6. Step 6: Final answer
    x = 18,537.38

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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.