Home / 21,060.46-31,588.57-7,018.98

Finding the Fourth Proportional to 21,060.46, 31,588.57 and 7,018.98

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Solution

The fourth proportional to 21,060.46, 31,588.57 and 7,018.98 is: 10,527.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,060.46 : 31,588.57 = 7,018.98 : x
  2. Step 2: Convert to fraction form
    21,060.46/31,588.57 = 7,018.98/x
  3. Step 3: Cross multiply
    21,060.46x = 31,588.57 × 7,018.98
  4. Step 4: Simplify right side
    21,060.46x = 221,719,541.06
  5. Step 5: Solve for x
    x = 221,719,541.06/21,060.46
  6. Step 6: Final answer
    x = 10,527.76

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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.