Home / 22,551.55-31,146.84-15,369.08

Finding the Fourth Proportional to 22,551.55, 31,146.84 and 15,369.08

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Solution

The fourth proportional to 22,551.55, 31,146.84 and 15,369.08 is: 21,226.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,551.55 : 31,146.84 = 15,369.08 : x
  2. Step 2: Convert to fraction form
    22,551.55/31,146.84 = 15,369.08/x
  3. Step 3: Cross multiply
    22,551.55x = 31,146.84 × 15,369.08
  4. Step 4: Simplify right side
    22,551.55x = 478,698,275.71
  5. Step 5: Solve for x
    x = 478,698,275.71/22,551.55
  6. Step 6: Final answer
    x = 21,226.85

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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.