Home / 42,401.60-63,602.40-12,816.35

Finding the Fourth Proportional to 42,401.60, 63,602.40 and 12,816.35

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Solution

The fourth proportional to 42,401.60, 63,602.40 and 12,816.35 is: 19,224.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,401.60 : 63,602.40 = 12,816.35 : x
  2. Step 2: Convert to fraction form
    42,401.60/63,602.40 = 12,816.35/x
  3. Step 3: Cross multiply
    42,401.60x = 63,602.40 × 12,816.35
  4. Step 4: Simplify right side
    42,401.60x = 815,150,619.24
  5. Step 5: Solve for x
    x = 815,150,619.24/42,401.60
  6. Step 6: Final answer
    x = 19,224.53

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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.