Home / 26,138.04-36,068.36-15,381.20

Finding the Fourth Proportional to 26,138.04, 36,068.36 and 15,381.20

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Solution

The fourth proportional to 26,138.04, 36,068.36 and 15,381.20 is: 21,224.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,138.04 : 36,068.36 = 15,381.20 : x
  2. Step 2: Convert to fraction form
    26,138.04/36,068.36 = 15,381.20/x
  3. Step 3: Cross multiply
    26,138.04x = 36,068.36 × 15,381.20
  4. Step 4: Simplify right side
    26,138.04x = 554,774,658.83
  5. Step 5: Solve for x
    x = 554,774,658.83/26,138.04
  6. Step 6: Final answer
    x = 21,224.80

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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.