Home / 21,055.59-31,586.63-7,010.80

Finding the Fourth Proportional to 21,055.59, 31,586.63 and 7,010.80

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Solution

The fourth proportional to 21,055.59, 31,586.63 and 7,010.80 is: 10,517.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,055.59 : 31,586.63 = 7,010.80 : x
  2. Step 2: Convert to fraction form
    21,055.59/31,586.63 = 7,010.80/x
  3. Step 3: Cross multiply
    21,055.59x = 31,586.63 × 7,010.80
  4. Step 4: Simplify right side
    21,055.59x = 221,447,510.55
  5. Step 5: Solve for x
    x = 221,447,510.55/21,055.59
  6. Step 6: Final answer
    x = 10,517.28

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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.