Home / 22,871.68-31,562.40-13,440.48

Finding the Fourth Proportional to 22,871.68, 31,562.40 and 13,440.48

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Solution

The fourth proportional to 22,871.68, 31,562.40 and 13,440.48 is: 18,547.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,871.68 : 31,562.40 = 13,440.48 : x
  2. Step 2: Convert to fraction form
    22,871.68/31,562.40 = 13,440.48/x
  3. Step 3: Cross multiply
    22,871.68x = 31,562.40 × 13,440.48
  4. Step 4: Simplify right side
    22,871.68x = 424,213,805.95
  5. Step 5: Solve for x
    x = 424,213,805.95/22,871.68
  6. Step 6: Final answer
    x = 18,547.56

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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.