Home / 28,001.96-42,001.58-10,470.42

Finding the Fourth Proportional to 28,001.96, 42,001.58 and 10,470.42

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Solution

The fourth proportional to 28,001.96, 42,001.58 and 10,470.42 is: 15,705.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,001.96 : 42,001.58 = 10,470.42 : x
  2. Step 2: Convert to fraction form
    28,001.96/42,001.58 = 10,470.42/x
  3. Step 3: Cross multiply
    28,001.96x = 42,001.58 × 10,470.42
  4. Step 4: Simplify right side
    28,001.96x = 439,774,130.91
  5. Step 5: Solve for x
    x = 439,774,130.91/28,001.96
  6. Step 6: Final answer
    x = 15,705.12

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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.