Home / 43,298.20-64,931.10-15,207.40

Finding the Fourth Proportional to 43,298.20, 64,931.10 and 15,207.40

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Solution

The fourth proportional to 43,298.20, 64,931.10 and 15,207.40 is: 22,805.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,298.20 : 64,931.10 = 15,207.40 : x
  2. Step 2: Convert to fraction form
    43,298.20/64,931.10 = 15,207.40/x
  3. Step 3: Cross multiply
    43,298.20x = 64,931.10 × 15,207.40
  4. Step 4: Simplify right side
    43,298.20x = 987,433,210.14
  5. Step 5: Solve for x
    x = 987,433,210.14/43,298.20
  6. Step 6: Final answer
    x = 22,805.41

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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.