Home / 21,943.40-32,931.30-14,545.40

Finding the Fourth Proportional to 21,943.40, 32,931.30 and 14,545.40

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Solution

The fourth proportional to 21,943.40, 32,931.30 and 14,545.40 is: 21,828.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,943.40 : 32,931.30 = 14,545.40 : x
  2. Step 2: Convert to fraction form
    21,943.40/32,931.30 = 14,545.40/x
  3. Step 3: Cross multiply
    21,943.40x = 32,931.30 × 14,545.40
  4. Step 4: Simplify right side
    21,943.40x = 478,998,931.02
  5. Step 5: Solve for x
    x = 478,998,931.02/21,943.40
  6. Step 6: Final answer
    x = 21,828.84

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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.