Home / 30,831.59-42,547.74-17,403.41

Finding the Fourth Proportional to 30,831.59, 42,547.74 and 17,403.41

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Solution

The fourth proportional to 30,831.59, 42,547.74 and 17,403.41 is: 24,016.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,831.59 : 42,547.74 = 17,403.41 : x
  2. Step 2: Convert to fraction form
    30,831.59/42,547.74 = 17,403.41/x
  3. Step 3: Cross multiply
    30,831.59x = 42,547.74 × 17,403.41
  4. Step 4: Simplify right side
    30,831.59x = 740,475,763.79
  5. Step 5: Solve for x
    x = 740,475,763.79/30,831.59
  6. Step 6: Final answer
    x = 24,016.79

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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.