Home / 15,339.20-23,008.80-10,090.40

Finding the Fourth Proportional to 15,339.20, 23,008.80 and 10,090.40

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Solution

The fourth proportional to 15,339.20, 23,008.80 and 10,090.40 is: 15,135.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,339.20 : 23,008.80 = 10,090.40 : x
  2. Step 2: Convert to fraction form
    15,339.20/23,008.80 = 10,090.40/x
  3. Step 3: Cross multiply
    15,339.20x = 23,008.80 × 10,090.40
  4. Step 4: Simplify right side
    15,339.20x = 232,167,995.52
  5. Step 5: Solve for x
    x = 232,167,995.52/15,339.20
  6. Step 6: Final answer
    x = 15,135.60

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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.