Home / 40,320.09-55,643.16-22,172.19

Finding the Fourth Proportional to 40,320.09, 55,643.16 and 22,172.19

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Solution

The fourth proportional to 40,320.09, 55,643.16 and 22,172.19 is: 30,598.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,320.09 : 55,643.16 = 22,172.19 : x
  2. Step 2: Convert to fraction form
    40,320.09/55,643.16 = 22,172.19/x
  3. Step 3: Cross multiply
    40,320.09x = 55,643.16 × 22,172.19
  4. Step 4: Simplify right side
    40,320.09x = 1,233,730,715.72
  5. Step 5: Solve for x
    x = 1,233,730,715.72/40,320.09
  6. Step 6: Final answer
    x = 30,598.41

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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.