Home / 20,349.12-30,535.02-10,988.94

Finding the Fourth Proportional to 20,349.12, 30,535.02 and 10,988.94

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Solution

The fourth proportional to 20,349.12, 30,535.02 and 10,988.94 is: 16,489.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,349.12 : 30,535.02 = 10,988.94 : x
  2. Step 2: Convert to fraction form
    20,349.12/30,535.02 = 10,988.94/x
  3. Step 3: Cross multiply
    20,349.12x = 30,535.02 × 10,988.94
  4. Step 4: Simplify right side
    20,349.12x = 335,547,502.68
  5. Step 5: Solve for x
    x = 335,547,502.68/20,349.12
  6. Step 6: Final answer
    x = 16,489.53

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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.