Home / 42,309.69-63,397.74-15,618.93

Finding the Fourth Proportional to 42,309.69, 63,397.74 and 15,618.93

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Solution

The fourth proportional to 42,309.69, 63,397.74 and 15,618.93 is: 23,403.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,309.69 : 63,397.74 = 15,618.93 : x
  2. Step 2: Convert to fraction form
    42,309.69/63,397.74 = 15,618.93/x
  3. Step 3: Cross multiply
    42,309.69x = 63,397.74 × 15,618.93
  4. Step 4: Simplify right side
    42,309.69x = 990,204,863.22
  5. Step 5: Solve for x
    x = 990,204,863.22/42,309.69
  6. Step 6: Final answer
    x = 23,403.74

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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.