Home / 20,026.51-30,035.10-7,547.78

Finding the Fourth Proportional to 20,026.51, 30,035.10 and 7,547.78

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Solution

The fourth proportional to 20,026.51, 30,035.10 and 7,547.78 is: 11,319.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,026.51 : 30,035.10 = 7,547.78 : x
  2. Step 2: Convert to fraction form
    20,026.51/30,035.10 = 7,547.78/x
  3. Step 3: Cross multiply
    20,026.51x = 30,035.10 × 7,547.78
  4. Step 4: Simplify right side
    20,026.51x = 226,698,327.08
  5. Step 5: Solve for x
    x = 226,698,327.08/20,026.51
  6. Step 6: Final answer
    x = 11,319.91

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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.