Home / 26,117.76-36,038.88-15,363.12

Finding the Fourth Proportional to 26,117.76, 36,038.88 and 15,363.12

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Solution

The fourth proportional to 26,117.76, 36,038.88 and 15,363.12 is: 21,198.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,117.76 : 36,038.88 = 15,363.12 : x
  2. Step 2: Convert to fraction form
    26,117.76/36,038.88 = 15,363.12/x
  3. Step 3: Cross multiply
    26,117.76x = 36,038.88 × 15,363.12
  4. Step 4: Simplify right side
    26,117.76x = 553,669,638.11
  5. Step 5: Solve for x
    x = 553,669,638.11/26,117.76
  6. Step 6: Final answer
    x = 21,198.97

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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.