Home / 25,287.68-34,890-16,335.56

Finding the Fourth Proportional to 25,287.68, 34,890 and 16,335.56

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Solution

The fourth proportional to 25,287.68, 34,890 and 16,335.56 is: 22,538.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,287.68 : 34,890 = 16,335.56 : x
  2. Step 2: Convert to fraction form
    25,287.68/34,890 = 16,335.56/x
  3. Step 3: Cross multiply
    25,287.68x = 34,890 × 16,335.56
  4. Step 4: Simplify right side
    25,287.68x = 569,947,688.40
  5. Step 5: Solve for x
    x = 569,947,688.40/25,287.68
  6. Step 6: Final answer
    x = 22,538.55

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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.