Home / 26,130.60-36,061.20-15,521.76

Finding the Fourth Proportional to 26,130.60, 36,061.20 and 15,521.76

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Solution

The fourth proportional to 26,130.60, 36,061.20 and 15,521.76 is: 21,420.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,130.60 : 36,061.20 = 15,521.76 : x
  2. Step 2: Convert to fraction form
    26,130.60/36,061.20 = 15,521.76/x
  3. Step 3: Cross multiply
    26,130.60x = 36,061.20 × 15,521.76
  4. Step 4: Simplify right side
    26,130.60x = 559,733,291.71
  5. Step 5: Solve for x
    x = 559,733,291.71/26,130.60
  6. Step 6: Final answer
    x = 21,420.61

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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.