Home / 42,916.65-64,387.58-19,218.93

Finding the Fourth Proportional to 42,916.65, 64,387.58 and 19,218.93

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Solution

The fourth proportional to 42,916.65, 64,387.58 and 19,218.93 is: 28,834.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,916.65 : 64,387.58 = 19,218.93 : x
  2. Step 2: Convert to fraction form
    42,916.65/64,387.58 = 19,218.93/x
  3. Step 3: Cross multiply
    42,916.65x = 64,387.58 × 19,218.93
  4. Step 4: Simplify right side
    42,916.65x = 1,237,460,296.79
  5. Step 5: Solve for x
    x = 1,237,460,296.79/42,916.65
  6. Step 6: Final answer
    x = 28,834.04

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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.