Home / 42,316.34-63,515.81-20,145.02

Finding the Fourth Proportional to 42,316.34, 63,515.81 and 20,145.02

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Solution

The fourth proportional to 42,316.34, 63,515.81 and 20,145.02 is: 30,237.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,316.34 : 63,515.81 = 20,145.02 : x
  2. Step 2: Convert to fraction form
    42,316.34/63,515.81 = 20,145.02/x
  3. Step 3: Cross multiply
    42,316.34x = 63,515.81 × 20,145.02
  4. Step 4: Simplify right side
    42,316.34x = 1,279,526,995.55
  5. Step 5: Solve for x
    x = 1,279,526,995.55/42,316.34
  6. Step 6: Final answer
    x = 30,237.19

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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.