Home / 26,643.18-36,768.81-15,316.35

Finding the Fourth Proportional to 26,643.18, 36,768.81 and 15,316.35

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Solution

The fourth proportional to 26,643.18, 36,768.81 and 15,316.35 is: 21,137.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,643.18 : 36,768.81 = 15,316.35 : x
  2. Step 2: Convert to fraction form
    26,643.18/36,768.81 = 15,316.35/x
  3. Step 3: Cross multiply
    26,643.18x = 36,768.81 × 15,316.35
  4. Step 4: Simplify right side
    26,643.18x = 563,163,963.04
  5. Step 5: Solve for x
    x = 563,163,963.04/26,643.18
  6. Step 6: Final answer
    x = 21,137.27

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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.