Home / 42,945.92-64,418.28-14,886.40

Finding the Fourth Proportional to 42,945.92, 64,418.28 and 14,886.40

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Solution

The fourth proportional to 42,945.92, 64,418.28 and 14,886.40 is: 22,329.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,945.92 : 64,418.28 = 14,886.40 : x
  2. Step 2: Convert to fraction form
    42,945.92/64,418.28 = 14,886.40/x
  3. Step 3: Cross multiply
    42,945.92x = 64,418.28 × 14,886.40
  4. Step 4: Simplify right side
    42,945.92x = 958,956,283.39
  5. Step 5: Solve for x
    x = 958,956,283.39/42,945.92
  6. Step 6: Final answer
    x = 22,329.39

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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.