Home / 21,644.51-32,442.15-9,156.74

Finding the Fourth Proportional to 21,644.51, 32,442.15 and 9,156.74

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Solution

The fourth proportional to 21,644.51, 32,442.15 and 9,156.74 is: 13,724.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,644.51 : 32,442.15 = 9,156.74 : x
  2. Step 2: Convert to fraction form
    21,644.51/32,442.15 = 9,156.74/x
  3. Step 3: Cross multiply
    21,644.51x = 32,442.15 × 9,156.74
  4. Step 4: Simplify right side
    21,644.51x = 297,064,332.59
  5. Step 5: Solve for x
    x = 297,064,332.59/21,644.51
  6. Step 6: Final answer
    x = 13,724.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.