Home / 42,207.68-63,316.80-15,555.36

Finding the Fourth Proportional to 42,207.68, 63,316.80 and 15,555.36

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Solution

The fourth proportional to 42,207.68, 63,316.80 and 15,555.36 is: 23,334.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,207.68 : 63,316.80 = 15,555.36 : x
  2. Step 2: Convert to fraction form
    42,207.68/63,316.80 = 15,555.36/x
  3. Step 3: Cross multiply
    42,207.68x = 63,316.80 × 15,555.36
  4. Step 4: Simplify right side
    42,207.68x = 984,915,618.05
  5. Step 5: Solve for x
    x = 984,915,618.05/42,207.68
  6. Step 6: Final answer
    x = 23,334.99

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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.