Home / 21,178.29-31,767.72-14,602.71

Finding the Fourth Proportional to 21,178.29, 31,767.72 and 14,602.71

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Solution

The fourth proportional to 21,178.29, 31,767.72 and 14,602.71 is: 21,904.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,178.29 : 31,767.72 = 14,602.71 : x
  2. Step 2: Convert to fraction form
    21,178.29/31,767.72 = 14,602.71/x
  3. Step 3: Cross multiply
    21,178.29x = 31,767.72 × 14,602.71
  4. Step 4: Simplify right side
    21,178.29x = 463,894,802.52
  5. Step 5: Solve for x
    x = 463,894,802.52/21,178.29
  6. Step 6: Final answer
    x = 21,904.26

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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.