Home / 28,347.68-42,500.40-19,557.92

Finding the Fourth Proportional to 28,347.68, 42,500.40 and 19,557.92

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Solution

The fourth proportional to 28,347.68, 42,500.40 and 19,557.92 is: 29,322.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,347.68 : 42,500.40 = 19,557.92 : x
  2. Step 2: Convert to fraction form
    28,347.68/42,500.40 = 19,557.92/x
  3. Step 3: Cross multiply
    28,347.68x = 42,500.40 × 19,557.92
  4. Step 4: Simplify right side
    28,347.68x = 831,219,423.17
  5. Step 5: Solve for x
    x = 831,219,423.17/28,347.68
  6. Step 6: Final answer
    x = 29,322.31

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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.