Home / 28,111.02-38,792.97-15,535.68

Finding the Fourth Proportional to 28,111.02, 38,792.97 and 15,535.68

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Solution

The fourth proportional to 28,111.02, 38,792.97 and 15,535.68 is: 21,439.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,111.02 : 38,792.97 = 15,535.68 : x
  2. Step 2: Convert to fraction form
    28,111.02/38,792.97 = 15,535.68/x
  3. Step 3: Cross multiply
    28,111.02x = 38,792.97 × 15,535.68
  4. Step 4: Simplify right side
    28,111.02x = 602,675,168.17
  5. Step 5: Solve for x
    x = 602,675,168.17/28,111.02
  6. Step 6: Final answer
    x = 21,439.11

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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.