Home / 29,688.51-40,970.17-16,259.78

Finding the Fourth Proportional to 29,688.51, 40,970.17 and 16,259.78

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Solution

The fourth proportional to 29,688.51, 40,970.17 and 16,259.78 is: 22,438.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,688.51 : 40,970.17 = 16,259.78 : x
  2. Step 2: Convert to fraction form
    29,688.51/40,970.17 = 16,259.78/x
  3. Step 3: Cross multiply
    29,688.51x = 40,970.17 × 16,259.78
  4. Step 4: Simplify right side
    29,688.51x = 666,165,950.76
  5. Step 5: Solve for x
    x = 666,165,950.76/29,688.51
  6. Step 6: Final answer
    x = 22,438.51

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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.