Home / 29,349.18-40,500.78-15,920.00

Finding the Fourth Proportional to 29,349.18, 40,500.78 and 15,920.00

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Solution

The fourth proportional to 29,349.18, 40,500.78 and 15,920.00 is: 21,969.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,349.18 : 40,500.78 = 15,920.00 : x
  2. Step 2: Convert to fraction form
    29,349.18/40,500.78 = 15,920.00/x
  3. Step 3: Cross multiply
    29,349.18x = 40,500.78 × 15,920.00
  4. Step 4: Simplify right side
    29,349.18x = 644,772,215.10
  5. Step 5: Solve for x
    x = 644,772,215.10/29,349.18
  6. Step 6: Final answer
    x = 21,969.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.