Home / 32,831.12-45,306.90-19,407.21

Finding the Fourth Proportional to 32,831.12, 45,306.90 and 19,407.21

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Solution

The fourth proportional to 32,831.12, 45,306.90 and 19,407.21 is: 26,781.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,831.12 : 45,306.90 = 19,407.21 : x
  2. Step 2: Convert to fraction form
    32,831.12/45,306.90 = 19,407.21/x
  3. Step 3: Cross multiply
    32,831.12x = 45,306.90 × 19,407.21
  4. Step 4: Simplify right side
    32,831.12x = 879,280,522.75
  5. Step 5: Solve for x
    x = 879,280,522.75/32,831.12
  6. Step 6: Final answer
    x = 26,781.93

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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.