Home / 21,060.08-31,592.28-7,210.16

Finding the Fourth Proportional to 21,060.08, 31,592.28 and 7,210.16

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Solution

The fourth proportional to 21,060.08, 31,592.28 and 7,210.16 is: 10,815.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,060.08 : 31,592.28 = 7,210.16 : x
  2. Step 2: Convert to fraction form
    21,060.08/31,592.28 = 7,210.16/x
  3. Step 3: Cross multiply
    21,060.08x = 31,592.28 × 7,210.16
  4. Step 4: Simplify right side
    21,060.08x = 227,785,393.56
  5. Step 5: Solve for x
    x = 227,785,393.56/21,060.08
  6. Step 6: Final answer
    x = 10,815.98

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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.