Home / 42,952.32-64,430.40-11,787.84

Finding the Fourth Proportional to 42,952.32, 64,430.40 and 11,787.84

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Solution

The fourth proportional to 42,952.32, 64,430.40 and 11,787.84 is: 17,682.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,952.32 : 64,430.40 = 11,787.84 : x
  2. Step 2: Convert to fraction form
    42,952.32/64,430.40 = 11,787.84/x
  3. Step 3: Cross multiply
    42,952.32x = 64,430.40 × 11,787.84
  4. Step 4: Simplify right side
    42,952.32x = 759,495,246.34
  5. Step 5: Solve for x
    x = 759,495,246.34/42,952.32
  6. Step 6: Final answer
    x = 17,682.29

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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.