Home / 20,307.76-28,024.50-11,233.51

Finding the Fourth Proportional to 20,307.76, 28,024.50 and 11,233.51

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Solution

The fourth proportional to 20,307.76, 28,024.50 and 11,233.51 is: 15,502.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,307.76 : 28,024.50 = 11,233.51 : x
  2. Step 2: Convert to fraction form
    20,307.76/28,024.50 = 11,233.51/x
  3. Step 3: Cross multiply
    20,307.76x = 28,024.50 × 11,233.51
  4. Step 4: Simplify right side
    20,307.76x = 314,813,501.00
  5. Step 5: Solve for x
    x = 314,813,501.00/20,307.76
  6. Step 6: Final answer
    x = 15,502.13

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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.