Home / 42,972.04-64,461.17-17,986.96

Finding the Fourth Proportional to 42,972.04, 64,461.17 and 17,986.96

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Solution

The fourth proportional to 42,972.04, 64,461.17 and 17,986.96 is: 26,981.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,972.04 : 64,461.17 = 17,986.96 : x
  2. Step 2: Convert to fraction form
    42,972.04/64,461.17 = 17,986.96/x
  3. Step 3: Cross multiply
    42,972.04x = 64,461.17 × 17,986.96
  4. Step 4: Simplify right side
    42,972.04x = 1,159,460,486.34
  5. Step 5: Solve for x
    x = 1,159,460,486.34/42,972.04
  6. Step 6: Final answer
    x = 26,981.74

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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.