Home / 30,484.96-42,066.48-19,306.72

Finding the Fourth Proportional to 30,484.96, 42,066.48 and 19,306.72

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Solution

The fourth proportional to 30,484.96, 42,066.48 and 19,306.72 is: 26,641.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,484.96 : 42,066.48 = 19,306.72 : x
  2. Step 2: Convert to fraction form
    30,484.96/42,066.48 = 19,306.72/x
  3. Step 3: Cross multiply
    30,484.96x = 42,066.48 × 19,306.72
  4. Step 4: Simplify right side
    30,484.96x = 812,165,750.75
  5. Step 5: Solve for x
    x = 812,165,750.75/30,484.96
  6. Step 6: Final answer
    x = 26,641.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.