Home / 35,416.80-48,887.52-21,998.40

Finding the Fourth Proportional to 35,416.80, 48,887.52 and 21,998.40

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Solution

The fourth proportional to 35,416.80, 48,887.52 and 21,998.40 is: 30,365.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,416.80 : 48,887.52 = 21,998.40 : x
  2. Step 2: Convert to fraction form
    35,416.80/48,887.52 = 21,998.40/x
  3. Step 3: Cross multiply
    35,416.80x = 48,887.52 × 21,998.40
  4. Step 4: Simplify right side
    35,416.80x = 1,075,447,219.97
  5. Step 5: Solve for x
    x = 1,075,447,219.97/35,416.80
  6. Step 6: Final answer
    x = 30,365.45

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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.