Home / 35,422.16-53,139.64-14,647.28

Finding the Fourth Proportional to 35,422.16, 53,139.64 and 14,647.28

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Solution

The fourth proportional to 35,422.16, 53,139.64 and 14,647.28 is: 21,973.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,422.16 : 53,139.64 = 14,647.28 : x
  2. Step 2: Convert to fraction form
    35,422.16/53,139.64 = 14,647.28/x
  3. Step 3: Cross multiply
    35,422.16x = 53,139.64 × 14,647.28
  4. Step 4: Simplify right side
    35,422.16x = 778,351,186.18
  5. Step 5: Solve for x
    x = 778,351,186.18/35,422.16
  6. Step 6: Final answer
    x = 21,973.57

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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.