Home / 21,688.21-32,535.56-6,897.61

Finding the Fourth Proportional to 21,688.21, 32,535.56 and 6,897.61

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Solution

The fourth proportional to 21,688.21, 32,535.56 and 6,897.61 is: 10,347.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,688.21 : 32,535.56 = 6,897.61 : x
  2. Step 2: Convert to fraction form
    21,688.21/32,535.56 = 6,897.61/x
  3. Step 3: Cross multiply
    21,688.21x = 32,535.56 × 6,897.61
  4. Step 4: Simplify right side
    21,688.21x = 224,417,569.52
  5. Step 5: Solve for x
    x = 224,417,569.52/21,688.21
  6. Step 6: Final answer
    x = 10,347.45

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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.