Home / 28,238.01-42,356.76-7,178.11

Finding the Fourth Proportional to 28,238.01, 42,356.76 and 7,178.11

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Solution

The fourth proportional to 28,238.01, 42,356.76 and 7,178.11 is: 10,767.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,238.01 : 42,356.76 = 7,178.11 : x
  2. Step 2: Convert to fraction form
    28,238.01/42,356.76 = 7,178.11/x
  3. Step 3: Cross multiply
    28,238.01x = 42,356.76 × 7,178.11
  4. Step 4: Simplify right side
    28,238.01x = 304,041,482.52
  5. Step 5: Solve for x
    x = 304,041,482.52/28,238.01
  6. Step 6: Final answer
    x = 10,767.10

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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.