Home / 35,976-53,931.60-19,322.40

Finding the Fourth Proportional to 35,976, 53,931.60 and 19,322.40

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Solution

The fourth proportional to 35,976, 53,931.60 and 19,322.40 is: 28,966.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,976 : 53,931.60 = 19,322.40 : x
  2. Step 2: Convert to fraction form
    35,976/53,931.60 = 19,322.40/x
  3. Step 3: Cross multiply
    35,976x = 53,931.60 × 19,322.40
  4. Step 4: Simplify right side
    35,976x = 1,042,087,947.84
  5. Step 5: Solve for x
    x = 1,042,087,947.84/35,976
  6. Step 6: Final answer
    x = 28,966.20

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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.