Home / 35,807.48-53,711.36-12,115.20

Finding the Fourth Proportional to 35,807.48, 53,711.36 and 12,115.20

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Solution

The fourth proportional to 35,807.48, 53,711.36 and 12,115.20 is: 18,172.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,807.48 : 53,711.36 = 12,115.20 : x
  2. Step 2: Convert to fraction form
    35,807.48/53,711.36 = 12,115.20/x
  3. Step 3: Cross multiply
    35,807.48x = 53,711.36 × 12,115.20
  4. Step 4: Simplify right side
    35,807.48x = 650,723,868.67
  5. Step 5: Solve for x
    x = 650,723,868.67/35,807.48
  6. Step 6: Final answer
    x = 18,172.85

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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.