Home / 15,287.40-22,931.10-15,190.20

Finding the Fourth Proportional to 15,287.40, 22,931.10 and 15,190.20

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Solution

The fourth proportional to 15,287.40, 22,931.10 and 15,190.20 is: 22,785.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,287.40 : 22,931.10 = 15,190.20 : x
  2. Step 2: Convert to fraction form
    15,287.40/22,931.10 = 15,190.20/x
  3. Step 3: Cross multiply
    15,287.40x = 22,931.10 × 15,190.20
  4. Step 4: Simplify right side
    15,287.40x = 348,327,995.22
  5. Step 5: Solve for x
    x = 348,327,995.22/15,287.40
  6. Step 6: Final answer
    x = 22,785.30

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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.