Home / 40,029.60-59,972.40-19,207.20

Finding the Fourth Proportional to 40,029.60, 59,972.40 and 19,207.20

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Solution

The fourth proportional to 40,029.60, 59,972.40 and 19,207.20 is: 28,776.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,029.60 : 59,972.40 = 19,207.20 : x
  2. Step 2: Convert to fraction form
    40,029.60/59,972.40 = 19,207.20/x
  3. Step 3: Cross multiply
    40,029.60x = 59,972.40 × 19,207.20
  4. Step 4: Simplify right side
    40,029.60x = 1,151,901,881.28
  5. Step 5: Solve for x
    x = 1,151,901,881.28/40,029.60
  6. Step 6: Final answer
    x = 28,776.25

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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.