Home / 35,723.60-53,578.56-12,345.20

Finding the Fourth Proportional to 35,723.60, 53,578.56 and 12,345.20

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Solution

The fourth proportional to 35,723.60, 53,578.56 and 12,345.20 is: 18,515.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,723.60 : 53,578.56 = 12,345.20 : x
  2. Step 2: Convert to fraction form
    35,723.60/53,578.56 = 12,345.20/x
  3. Step 3: Cross multiply
    35,723.60x = 53,578.56 × 12,345.20
  4. Step 4: Simplify right side
    35,723.60x = 661,438,038.91
  5. Step 5: Solve for x
    x = 661,438,038.91/35,723.60
  6. Step 6: Final answer
    x = 18,515.44

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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.