Home / 22,159.60-30,518.04-21,675.76

Finding the Fourth Proportional to 22,159.60, 30,518.04 and 21,675.76

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Solution

The fourth proportional to 22,159.60, 30,518.04 and 21,675.76 is: 29,851.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,159.60 : 30,518.04 = 21,675.76 : x
  2. Step 2: Convert to fraction form
    22,159.60/30,518.04 = 21,675.76/x
  3. Step 3: Cross multiply
    22,159.60x = 30,518.04 × 21,675.76
  4. Step 4: Simplify right side
    22,159.60x = 661,501,710.71
  5. Step 5: Solve for x
    x = 661,501,710.71/22,159.60
  6. Step 6: Final answer
    x = 29,851.70

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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.