Home / 15,030.38-20,727.74-11,210.45

Finding the Fourth Proportional to 15,030.38, 20,727.74 and 11,210.45

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Solution

The fourth proportional to 15,030.38, 20,727.74 and 11,210.45 is: 15,459.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,030.38 : 20,727.74 = 11,210.45 : x
  2. Step 2: Convert to fraction form
    15,030.38/20,727.74 = 11,210.45/x
  3. Step 3: Cross multiply
    15,030.38x = 20,727.74 × 11,210.45
  4. Step 4: Simplify right side
    15,030.38x = 232,367,133.19
  5. Step 5: Solve for x
    x = 232,367,133.19/15,030.38
  6. Step 6: Final answer
    x = 15,459.83

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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.