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Finding the Fourth Proportional to 26,465.58, 39,702.90 and 8,931.30

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Solution

The fourth proportional to 26,465.58, 39,702.90 and 8,931.30 is: 13,398.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,465.58 : 39,702.90 = 8,931.30 : x
  2. Step 2: Convert to fraction form
    26,465.58/39,702.90 = 8,931.30/x
  3. Step 3: Cross multiply
    26,465.58x = 39,702.90 × 8,931.30
  4. Step 4: Simplify right side
    26,465.58x = 354,598,510.77
  5. Step 5: Solve for x
    x = 354,598,510.77/26,465.58
  6. Step 6: Final answer
    x = 13,398.48

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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.