Home / 42,332.40-63,525.60-20,170.80

Finding the Fourth Proportional to 42,332.40, 63,525.60 and 20,170.80

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Solution

The fourth proportional to 42,332.40, 63,525.60 and 20,170.80 is: 30,269.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,332.40 : 63,525.60 = 20,170.80 : x
  2. Step 2: Convert to fraction form
    42,332.40/63,525.60 = 20,170.80/x
  3. Step 3: Cross multiply
    42,332.40x = 63,525.60 × 20,170.80
  4. Step 4: Simplify right side
    42,332.40x = 1,281,362,172.48
  5. Step 5: Solve for x
    x = 1,281,362,172.48/42,332.40
  6. Step 6: Final answer
    x = 30,269.07

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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.