Home / 28,643.52-42,957.84-19,278.24

Finding the Fourth Proportional to 28,643.52, 42,957.84 and 19,278.24

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Solution

The fourth proportional to 28,643.52, 42,957.84 and 19,278.24 is: 28,912.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,643.52 : 42,957.84 = 19,278.24 : x
  2. Step 2: Convert to fraction form
    28,643.52/42,957.84 = 19,278.24/x
  3. Step 3: Cross multiply
    28,643.52x = 42,957.84 × 19,278.24
  4. Step 4: Simplify right side
    28,643.52x = 828,151,549.40
  5. Step 5: Solve for x
    x = 828,151,549.40/28,643.52
  6. Step 6: Final answer
    x = 28,912.35

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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.