Home / 28,350.40-42,531.34-15,888.20

Finding the Fourth Proportional to 28,350.40, 42,531.34 and 15,888.20

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Solution

The fourth proportional to 28,350.40, 42,531.34 and 15,888.20 is: 23,835.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,350.40 : 42,531.34 = 15,888.20 : x
  2. Step 2: Convert to fraction form
    28,350.40/42,531.34 = 15,888.20/x
  3. Step 3: Cross multiply
    28,350.40x = 42,531.34 × 15,888.20
  4. Step 4: Simplify right side
    28,350.40x = 675,746,436.19
  5. Step 5: Solve for x
    x = 675,746,436.19/28,350.40
  6. Step 6: Final answer
    x = 23,835.52

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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.