Home / 34,985.20-48,275.36-19,872.40

Finding the Fourth Proportional to 34,985.20, 48,275.36 and 19,872.40

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Solution

The fourth proportional to 34,985.20, 48,275.36 and 19,872.40 is: 27,421.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,985.20 : 48,275.36 = 19,872.40 : x
  2. Step 2: Convert to fraction form
    34,985.20/48,275.36 = 19,872.40/x
  3. Step 3: Cross multiply
    34,985.20x = 48,275.36 × 19,872.40
  4. Step 4: Simplify right side
    34,985.20x = 959,347,264.06
  5. Step 5: Solve for x
    x = 959,347,264.06/34,985.20
  6. Step 6: Final answer
    x = 27,421.52

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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.