Home / 21,314.16-31,985.84-7,463.20

Finding the Fourth Proportional to 21,314.16, 31,985.84 and 7,463.20

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Solution

The fourth proportional to 21,314.16, 31,985.84 and 7,463.20 is: 11,199.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,314.16 : 31,985.84 = 7,463.20 : x
  2. Step 2: Convert to fraction form
    21,314.16/31,985.84 = 7,463.20/x
  3. Step 3: Cross multiply
    21,314.16x = 31,985.84 × 7,463.20
  4. Step 4: Simplify right side
    21,314.16x = 238,716,721.09
  5. Step 5: Solve for x
    x = 238,716,721.09/21,314.16
  6. Step 6: Final answer
    x = 11,199.91

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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.