Home / 42,966.63-64,449.95-13,386.85

Finding the Fourth Proportional to 42,966.63, 64,449.95 and 13,386.85

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Solution

The fourth proportional to 42,966.63, 64,449.95 and 13,386.85 is: 20,080.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,966.63 : 64,449.95 = 13,386.85 : x
  2. Step 2: Convert to fraction form
    42,966.63/64,449.95 = 13,386.85/x
  3. Step 3: Cross multiply
    42,966.63x = 64,449.95 × 13,386.85
  4. Step 4: Simplify right side
    42,966.63x = 862,781,813.16
  5. Step 5: Solve for x
    x = 862,781,813.16/42,966.63
  6. Step 6: Final answer
    x = 20,080.28

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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.