Home / 28,583.08-42,700.81-18,505.74

Finding the Fourth Proportional to 28,583.08, 42,700.81 and 18,505.74

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Solution

The fourth proportional to 28,583.08, 42,700.81 and 18,505.74 is: 27,646.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,583.08 : 42,700.81 = 18,505.74 : x
  2. Step 2: Convert to fraction form
    28,583.08/42,700.81 = 18,505.74/x
  3. Step 3: Cross multiply
    28,583.08x = 42,700.81 × 18,505.74
  4. Step 4: Simplify right side
    28,583.08x = 790,210,087.65
  5. Step 5: Solve for x
    x = 790,210,087.65/28,583.08
  6. Step 6: Final answer
    x = 27,646.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.