Home / 42,916.85-64,373.90-13,326.74

Finding the Fourth Proportional to 42,916.85, 64,373.90 and 13,326.74

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Solution

The fourth proportional to 42,916.85, 64,373.90 and 13,326.74 is: 19,989.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,916.85 : 64,373.90 = 13,326.74 : x
  2. Step 2: Convert to fraction form
    42,916.85/64,373.90 = 13,326.74/x
  3. Step 3: Cross multiply
    42,916.85x = 64,373.90 × 13,326.74
  4. Step 4: Simplify right side
    42,916.85x = 857,893,889.56
  5. Step 5: Solve for x
    x = 857,893,889.56/42,916.85
  6. Step 6: Final answer
    x = 19,989.68

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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.