Home / 28,588.16-42,831.04-17,621.12

Finding the Fourth Proportional to 28,588.16, 42,831.04 and 17,621.12

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Solution

The fourth proportional to 28,588.16, 42,831.04 and 17,621.12 is: 26,400.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,588.16 : 42,831.04 = 17,621.12 : x
  2. Step 2: Convert to fraction form
    28,588.16/42,831.04 = 17,621.12/x
  3. Step 3: Cross multiply
    28,588.16x = 42,831.04 × 17,621.12
  4. Step 4: Simplify right side
    28,588.16x = 754,730,895.56
  5. Step 5: Solve for x
    x = 754,730,895.56/28,588.16
  6. Step 6: Final answer
    x = 26,400.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.