Home / 25,572.48-38,336.13-9,979.20

Finding the Fourth Proportional to 25,572.48, 38,336.13 and 9,979.20

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Solution

The fourth proportional to 25,572.48, 38,336.13 and 9,979.20 is: 14,959.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,572.48 : 38,336.13 = 9,979.20 : x
  2. Step 2: Convert to fraction form
    25,572.48/38,336.13 = 9,979.20/x
  3. Step 3: Cross multiply
    25,572.48x = 38,336.13 × 9,979.20
  4. Step 4: Simplify right side
    25,572.48x = 382,563,908.50
  5. Step 5: Solve for x
    x = 382,563,908.50/25,572.48
  6. Step 6: Final answer
    x = 14,959.98

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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.