Home / 22,881.47-31,570.99-13,315.56

Finding the Fourth Proportional to 22,881.47, 31,570.99 and 13,315.56

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Solution

The fourth proportional to 22,881.47, 31,570.99 and 13,315.56 is: 18,372.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,881.47 : 31,570.99 = 13,315.56 : x
  2. Step 2: Convert to fraction form
    22,881.47/31,570.99 = 13,315.56/x
  3. Step 3: Cross multiply
    22,881.47x = 31,570.99 × 13,315.56
  4. Step 4: Simplify right side
    22,881.47x = 420,385,437.51
  5. Step 5: Solve for x
    x = 420,385,437.51/22,881.47
  6. Step 6: Final answer
    x = 18,372.31

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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.