Home / 28,340.15-42,482.55-10,557.79

Finding the Fourth Proportional to 28,340.15, 42,482.55 and 10,557.79

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Solution

The fourth proportional to 28,340.15, 42,482.55 and 10,557.79 is: 15,826.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,340.15 : 42,482.55 = 10,557.79 : x
  2. Step 2: Convert to fraction form
    28,340.15/42,482.55 = 10,557.79/x
  3. Step 3: Cross multiply
    28,340.15x = 42,482.55 × 10,557.79
  4. Step 4: Simplify right side
    28,340.15x = 448,521,984.22
  5. Step 5: Solve for x
    x = 448,521,984.22/28,340.15
  6. Step 6: Final answer
    x = 15,826.38

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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.