Home / 26,420.50-36,460.56-15,812.20

Finding the Fourth Proportional to 26,420.50, 36,460.56 and 15,812.20

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Solution

The fourth proportional to 26,420.50, 36,460.56 and 15,812.20 is: 21,821.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,420.50 : 36,460.56 = 15,812.20 : x
  2. Step 2: Convert to fraction form
    26,420.50/36,460.56 = 15,812.20/x
  3. Step 3: Cross multiply
    26,420.50x = 36,460.56 × 15,812.20
  4. Step 4: Simplify right side
    26,420.50x = 576,521,666.83
  5. Step 5: Solve for x
    x = 576,521,666.83/26,420.50
  6. Step 6: Final answer
    x = 21,821.00

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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.