Home / 42,947.08-64,445.74-17,985.03

Finding the Fourth Proportional to 42,947.08, 64,445.74 and 17,985.03

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Solution

The fourth proportional to 42,947.08, 64,445.74 and 17,985.03 is: 26,988.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,947.08 : 64,445.74 = 17,985.03 : x
  2. Step 2: Convert to fraction form
    42,947.08/64,445.74 = 17,985.03/x
  3. Step 3: Cross multiply
    42,947.08x = 64,445.74 × 17,985.03
  4. Step 4: Simplify right side
    42,947.08x = 1,159,058,522.31
  5. Step 5: Solve for x
    x = 1,159,058,522.31/42,947.08
  6. Step 6: Final answer
    x = 26,988.07

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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.