Home / 28,158.73-38,859.47-15,583.93

Finding the Fourth Proportional to 28,158.73, 38,859.47 and 15,583.93

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Solution

The fourth proportional to 28,158.73, 38,859.47 and 15,583.93 is: 21,506.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,158.73 : 38,859.47 = 15,583.93 : x
  2. Step 2: Convert to fraction form
    28,158.73/38,859.47 = 15,583.93/x
  3. Step 3: Cross multiply
    28,158.73x = 38,859.47 × 15,583.93
  4. Step 4: Simplify right side
    28,158.73x = 605,583,182.40
  5. Step 5: Solve for x
    x = 605,583,182.40/28,158.73
  6. Step 6: Final answer
    x = 21,506.05

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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.