Home / 28,268.49-42,402.29-8,547.22

Finding the Fourth Proportional to 28,268.49, 42,402.29 and 8,547.22

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Solution

The fourth proportional to 28,268.49, 42,402.29 and 8,547.22 is: 12,820.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,268.49 : 42,402.29 = 8,547.22 : x
  2. Step 2: Convert to fraction form
    28,268.49/42,402.29 = 8,547.22/x
  3. Step 3: Cross multiply
    28,268.49x = 42,402.29 × 8,547.22
  4. Step 4: Simplify right side
    28,268.49x = 362,421,711.40
  5. Step 5: Solve for x
    x = 362,421,711.40/28,268.49
  6. Step 6: Final answer
    x = 12,820.69

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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.