Home / 30,831.13-42,547.00-16,683.98

Finding the Fourth Proportional to 30,831.13, 42,547.00 and 16,683.98

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Solution

The fourth proportional to 30,831.13, 42,547.00 and 16,683.98 is: 23,023.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,831.13 : 42,547.00 = 16,683.98 : x
  2. Step 2: Convert to fraction form
    30,831.13/42,547.00 = 16,683.98/x
  3. Step 3: Cross multiply
    30,831.13x = 42,547.00 × 16,683.98
  4. Step 4: Simplify right side
    30,831.13x = 709,853,184.96
  5. Step 5: Solve for x
    x = 709,853,184.96/30,831.13
  6. Step 6: Final answer
    x = 23,023.91

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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.