Home / 28,230.47-42,347.79-9,510.42

Finding the Fourth Proportional to 28,230.47, 42,347.79 and 9,510.42

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Solution

The fourth proportional to 28,230.47, 42,347.79 and 9,510.42 is: 14,266.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,230.47 : 42,347.79 = 9,510.42 : x
  2. Step 2: Convert to fraction form
    28,230.47/42,347.79 = 9,510.42/x
  3. Step 3: Cross multiply
    28,230.47x = 42,347.79 × 9,510.42
  4. Step 4: Simplify right side
    28,230.47x = 402,745,268.97
  5. Step 5: Solve for x
    x = 402,745,268.97/28,230.47
  6. Step 6: Final answer
    x = 14,266.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.