Home / 40,345.59-60,518.39-12,643.59

Finding the Fourth Proportional to 40,345.59, 60,518.39 and 12,643.59

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Solution

The fourth proportional to 40,345.59, 60,518.39 and 12,643.59 is: 18,965.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,345.59 : 60,518.39 = 12,643.59 : x
  2. Step 2: Convert to fraction form
    40,345.59/60,518.39 = 12,643.59/x
  3. Step 3: Cross multiply
    40,345.59x = 60,518.39 × 12,643.59
  4. Step 4: Simplify right side
    40,345.59x = 765,169,945.47
  5. Step 5: Solve for x
    x = 765,169,945.47/40,345.59
  6. Step 6: Final answer
    x = 18,965.39

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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.