Home / 35,487.10-53,210.40-13,301.20

Finding the Fourth Proportional to 35,487.10, 53,210.40 and 13,301.20

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Solution

The fourth proportional to 35,487.10, 53,210.40 and 13,301.20 is: 19,944.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,487.10 : 53,210.40 = 13,301.20 : x
  2. Step 2: Convert to fraction form
    35,487.10/53,210.40 = 13,301.20/x
  3. Step 3: Cross multiply
    35,487.10x = 53,210.40 × 13,301.20
  4. Step 4: Simplify right side
    35,487.10x = 707,762,172.48
  5. Step 5: Solve for x
    x = 707,762,172.48/35,487.10
  6. Step 6: Final answer
    x = 19,944.21

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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.