Home / 28,511.08-42,482.45-25,407.40

Finding the Fourth Proportional to 28,511.08, 42,482.45 and 25,407.40

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Solution

The fourth proportional to 28,511.08, 42,482.45 and 25,407.40 is: 37,857.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,511.08 : 42,482.45 = 25,407.40 : x
  2. Step 2: Convert to fraction form
    28,511.08/42,482.45 = 25,407.40/x
  3. Step 3: Cross multiply
    28,511.08x = 42,482.45 × 25,407.40
  4. Step 4: Simplify right side
    28,511.08x = 1,079,368,600.13
  5. Step 5: Solve for x
    x = 1,079,368,600.13/28,511.08
  6. Step 6: Final answer
    x = 37,857.86

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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.