Home / 47,042.16-64,916.28-28,189.68

Finding the Fourth Proportional to 47,042.16, 64,916.28 and 28,189.68

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Solution

The fourth proportional to 47,042.16, 64,916.28 and 28,189.68 is: 38,900.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,042.16 : 64,916.28 = 28,189.68 : x
  2. Step 2: Convert to fraction form
    47,042.16/64,916.28 = 28,189.68/x
  3. Step 3: Cross multiply
    47,042.16x = 64,916.28 × 28,189.68
  4. Step 4: Simplify right side
    47,042.16x = 1,829,969,159.99
  5. Step 5: Solve for x
    x = 1,829,969,159.99/47,042.16
  6. Step 6: Final answer
    x = 38,900.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.