Home / 15,510.40-23,314.20-15,218.80

Finding the Fourth Proportional to 15,510.40, 23,314.20 and 15,218.80

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Solution

The fourth proportional to 15,510.40, 23,314.20 and 15,218.80 is: 22,875.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,510.40 : 23,314.20 = 15,218.80 : x
  2. Step 2: Convert to fraction form
    15,510.40/23,314.20 = 15,218.80/x
  3. Step 3: Cross multiply
    15,510.40x = 23,314.20 × 15,218.80
  4. Step 4: Simplify right side
    15,510.40x = 354,814,146.96
  5. Step 5: Solve for x
    x = 354,814,146.96/15,510.40
  6. Step 6: Final answer
    x = 22,875.89

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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.