Home / 30,831.09-42,547.05-17,402.91

Finding the Fourth Proportional to 30,831.09, 42,547.05 and 17,402.91

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Solution

The fourth proportional to 30,831.09, 42,547.05 and 17,402.91 is: 24,016.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,831.09 : 42,547.05 = 17,402.91 : x
  2. Step 2: Convert to fraction form
    30,831.09/42,547.05 = 17,402.91/x
  3. Step 3: Cross multiply
    30,831.09x = 42,547.05 × 17,402.91
  4. Step 4: Simplify right side
    30,831.09x = 740,442,481.92
  5. Step 5: Solve for x
    x = 740,442,481.92/30,831.09
  6. Step 6: Final answer
    x = 24,016.10

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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.