Home / 21,063.47-31,593.58-9,953.51

Finding the Fourth Proportional to 21,063.47, 31,593.58 and 9,953.51

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Solution

The fourth proportional to 21,063.47, 31,593.58 and 9,953.51 is: 14,929.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,063.47 : 31,593.58 = 9,953.51 : x
  2. Step 2: Convert to fraction form
    21,063.47/31,593.58 = 9,953.51/x
  3. Step 3: Cross multiply
    21,063.47x = 31,593.58 × 9,953.51
  4. Step 4: Simplify right side
    21,063.47x = 314,466,831.61
  5. Step 5: Solve for x
    x = 314,466,831.61/21,063.47
  6. Step 6: Final answer
    x = 14,929.49

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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.