Home / 25,581.48-38,349.63-9,988.20

Finding the Fourth Proportional to 25,581.48, 38,349.63 and 9,988.20

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Solution

The fourth proportional to 25,581.48, 38,349.63 and 9,988.20 is: 14,973.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,581.48 : 38,349.63 = 9,988.20 : x
  2. Step 2: Convert to fraction form
    25,581.48/38,349.63 = 9,988.20/x
  3. Step 3: Cross multiply
    25,581.48x = 38,349.63 × 9,988.20
  4. Step 4: Simplify right side
    25,581.48x = 383,043,774.37
  5. Step 5: Solve for x
    x = 383,043,774.37/25,581.48
  6. Step 6: Final answer
    x = 14,973.48

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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.