Home / 25,702.78-35,478.76-17,663.05

Finding the Fourth Proportional to 25,702.78, 35,478.76 and 17,663.05

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Solution

The fourth proportional to 25,702.78, 35,478.76 and 17,663.05 is: 24,381.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,702.78 : 35,478.76 = 17,663.05 : x
  2. Step 2: Convert to fraction form
    25,702.78/35,478.76 = 17,663.05/x
  3. Step 3: Cross multiply
    25,702.78x = 35,478.76 × 17,663.05
  4. Step 4: Simplify right side
    25,702.78x = 626,663,244.59
  5. Step 5: Solve for x
    x = 626,663,244.59/25,702.78
  6. Step 6: Final answer
    x = 24,381.15

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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.